Finest Workmanship & Quality; Made In USA From M-7 High Speed Steel
Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
Note: If you do not see the caliber you are looking for below, please feel free to contact our Special Orders Department, as many additional items are avaliable from Clymer.
SPECS: RIFLE REAMERS - 6, right-hand cutting, straight flutes. Solid pilot, integral throat. Stocked in Rougher and Finisher. 7/16" round shank with 3/8" square drive. ¼" round shank on .22 RF. ORDERING: Advise: 1) Stock #. 2) Cartridge Caliber and Name.
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Customer ratings for CLYMER 257 ROBERTS FINISHING REAMER
Number of ratings: 9
From brownells.com: 9
Average rating: 3.7
Works well(11/06/2011)
Using the methods outlined in Sweeney's AR-15 Gunsmithing volume, and lubed with Do-Drill, I was able to adjust the headspace on a new, non-chromed barrel. Less than a half-dozen turns brought the chamber to the point where the stripped bolt would just close on a Clymer GO gauge. With the gauge then lengthened by .003" using a piece of tape, I further adjusted the headspace with an additional 3/4 turn of the reamer. Now the bolt closes on the lengthened gauge but not on a NO-GO gauge. This should produce an accurate rifle.
Beautiful finishing reamer(30/04/2015)
Leaves a great finish, spec's out perfectly, and is a great value for the money.
Sharp as a razor(11/05/2015)
I used this to hand ream a short chambered barrel there was no chatter what-so-ever and the chamber was left with a mirror-like finish. I used plain ATF to lubricate this reamer and it worked great. It finished the chamber in 4 or 5 passes.
Good reamer(01/12/2013)
I heard bad things about Clymer reamers, but wasn't disappointed. Cut the chamber smooth and chatter free. I am happy.
Chatter(27/09/2010)
Clymer reamers have become notorious for chatter lately. I have had a couple that chattered, and several of my Gunsmith colleagues have had the same thing. I would not recommend the reamers by this company, as their quality has gone downhill in the past few years. My reamer chattered so bad so fast that the chamber was almost not salvageable.
Excessive chatter(12/09/2009)
Having used Clymer reramers in the past, I expected no problems. When I used this reamer it started to chatter immediately. Regardless of lathe speed or feed rate I was unable to eliminate the chatter. Thanks to the folks at Brownells, I was not stuck with this poorly made tool. I will continue to use Clymer reamers in the future, which I already have, but will think twice before buying another one.
CLYMER REAMER in .243 Winchester (14/10/2017)
If It works as intended, I shall be able to close my Remington 700 bolt with a cartridge in place with ease. My new Shilen 26" Chrome-Moly barrel with 1 in 10" twist is beautiful and almost ready to lock-and-load. So, I will inform you soon as to how the reamer performed. My main bullets are: Hornaday 75 grain V-Max and Swift Scirocco II 90 grain Bonded. I have no images yet, because I am not ready to disclose my findings. Cliffy
not worth spending the money on(04/03/2010)
Bought Clymer reamer because of reputation - MISTAKE. Even with a floating reamer holder, I couldn't make it stop chattering. Had to set barrel back & start over with another brand of reamer (worked great)
.223 reamer...finishing(08/06/2011)
This was used to extend the life of AR15 barrels that were getting a little long in the throat. The barrel extension is removed, 0.062 removed from the barrel shoulder (one thread) and the reamer is used to deepen the chamber 0.060. A "shot out" Krieger and a RR barrel were renewed and their usable lives were extended by a 2-3 thousand rounds.
Product no.: 184050080 CLYMER 220 SWIFT BOLT ACTION FINISHING REAMER Mfr Part: F220SW Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
Made from high-quality M-7 High-Speed Steel, these precision tools by Clymer are designed for professional gunsmiths and are guaranteed to last a lifetime with proper care.
The Finish Reamer is used for cutting chambers and is available in two types: Rougher (for initial cuts and to reduce wear on the Finish Reamer) and Finisher (for final sizing).
These rimless rifle chambering reamers are made to SAAMI specifications, suitable for the 220 Swift cartridge, and come with essential ordering information such as Stock # and Cartridge Caliber/Name.
Product no.: 184050100 CLYMER 222 REMINGTON FINISHING REAMER Mfr Part: F222REM Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
Made from high-quality M-7 High-Speed Steel, Clymer's Rimless Rifle Chambering Reamers are designed for professional gunsmiths and ensure longevity with proper care.
The reamers come in two types: Roughers, for initial chambering to reduce wear on the Finish Reamer, and Finishers, for the final chamber size.
These precision tools are made to SAAMI specifications, with options for the 222 Remington cartridge, and feature right-hand cutting with straight flutes and a solid pilot with an integral throat.
Product no.: 184050120 CLYMER 223 REMINGTON FINISHING REAMER Mfr Part: F223REM Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
Made from high-quality M-7 High-Speed Steel, Clymer's Rimless Rifle Chambering Reamers are precision tools designed for professional gunsmiths, ensuring a lifetime of service when properly maintained.
The product line includes both Rougher and Finisher Reamers, with Roughers being .010" smaller to save wear on the Finish Reamer when cutting multiple chambers.
These reamers are made to SAAMI specifications, with the 223 Remington Finish Reamer having a solid pilot, integral throat, and are suitable for creating precise chambers in rimless rifle cartridges.
Product no.: 184050130 CLYMER 22-250 REMINGTON FINISHING REAMER Mfr Part: F22250 Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
Clymer's Rimless Rifle Chambering Reamers are made from high-quality M-7 High-Speed Steel for professional gunsmithing and offer a lifetime of service with proper care.
The reamers are available in Rougher and Finisher types, with Roughers being .010" smaller to save wear on the Finish Reamer when cutting multiple chambers.
These precision tools are made to SAAMI specifications, specifically for the 22-250 Remington cartridge, and feature a 7/16" round shank with 3/8" square drive.
Product no.: 184050131 CLYMER 22-250 REMINGTON ROUGHER REAMER Mfr Part: R22250 Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
Product no.: 184050155 CLYMER 6MM REMINGTON BR FINISHING REAMER Mfr Part: F6MMBR Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
Clymer's Rimless Rifle Chambering Reamers are made from high-quality M-7 High-Speed Steel for professional gunsmiths, ensuring longevity and precision.
These reamers are designed to SAAMI specifications with options for Rougher and Finisher, suitable for 6mm Rem BR (Benchrest) cartridges.
The product features include right-hand cutting, straight flutes, solid pilot, integral throat, and is available with a 7/16" round shank and 3/8" square drive.
Attributes
Cartridge:
6 mm Rem BR (Benchrest)
Style:
Rimless Rifle
Delivery weight: 0.045kgShipping height: 15mmShipping width: 15mmShipping length: 127mm
Product no.: 184050270 CLYMER 270 WINCHESTER FINISHING REAMER Mfr Part: F270WIN Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
Clymer's Rimless Rifle Chambering Reamers are high-quality, M-7 High-Speed Steel precision tools for professional gunsmiths, guaranteed to last a lifetime.
Finish Reamers are used for final chambering when only a few chambers are needed, while Roughers save wear on Finish Reamers during multiple chamber cuts.
These reamers are made to SAAMI specifications, with options for Rougher and Finisher, featuring right-hand cutting, straight flutes, and solid pilots with integral throats.
Product no.: 184050275 CLYMER 7.62X39MM FINISHING REAMER Mfr Part: F76239 Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
179.9GBP10£179.90
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Delivery time approx. 7-14 days. More than 10 pieces in USA warehouse
Specs:Cartridge: 7.62 x 39 mm RussianStyle: Rimless Rifle
Clymer's 7.62x39mm Finishing Reamer is crafted from high-quality M-7 High-Speed Steel for professional gunsmithing and longevity.
The product is designed to SAAMI specifications with precision, featuring right-hand cutting, straight flutes, and an integral throat for rimless rifle chambers.
It includes a solid pilot and is available in both Rougher and Finisher types, with the Rougher being used to extend the life of the Finish Reamer when cutting multiple chambers.
Attributes
Cartridge:
7.62 x 39 mm Russian
Style:
Rimless Rifle
Delivery weight: 0.045kgShipping height: 15mmShipping width: 18mmShipping length: 140mm
Product no.: 184050310 CLYMER 284 WINCHESTER FINISHING REAMER Mfr Part: F284WIN Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
Clymer's 284 Winchester Finishing Reamer is made from high-quality M-7 High-Speed Steel for professional gunsmithing and is guaranteed to last a lifetime when cared for properly.
The reamer is precision-made to SAAMI specifications and is available in both Rougher and Finisher types, with the Rougher being .010" smaller to reduce wear on the Finisher.
It features 6 right-hand cutting, straight flutes with a solid pilot and integral throat, and comes with a 7/16" round shank with 3/8" square drive, except for the .22 RF which has a ¼" round shank.
Product no.: 184050314 CLYMER 300 REMINGTON ULTRA MAG FINISHING REAMER Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
Clymer's 300 Remington Ultra Mag Finishing Reamer is made from high-quality M-7 High-Speed Steel for professional gunsmiths, ensuring a lifetime of service when properly maintained.
The product is designed to meet SAAMI specifications with features like right-hand cutting, straight flutes, solid pilot, and integral throat for precision chambering.
Available in both Rougher and Finisher variants, the reamers come with a 7/16" round shank and 3/8" square drive, with the Finish Reamer being suitable for occasional use and the Rougher for multiple chambers to reduce wear.
Product no.: 184050350 CLYMER 7MM-08 REMINGTON FINISHING REAMER Mfr Part: F7MM/08 Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
184.9GBP39£184.90
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Delivery time approx. 7-14 days. More than 10 pieces in USA warehouse
Specs:Cartridge: 7 mm - 08 RemingtonStyle: Rimless Rifle
Clymer's Rimless Rifle Chambering Reamers are made from high-quality M-7 High-Speed Steel for professional gunsmithing and are guaranteed to last when properly maintained.
These precision tools are designed to SAAMI specifications, with the Finish Reamer being suitable for a few chamber cuts and the Rougher used to extend the Finish Reamer's life for multiple chambers.
The reamers feature 6 right-hand cutting, straight flutes, a solid pilot, an integral throat, and are available in both Rougher and Finisher with different shank sizes for various calibers.
Product no.: 184050390 CLYMER 30-06 SPRINGFIELD FINISHING REAMER Mfr Part: F30/06SPR Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
Clymer rimless rifle chambering reamers are made from high-quality M-7 High-Speed Steel for professional gunsmithing.
Designed for longevity and precision, these reamers are available in Rougher and Finisher types, suitable for different frequencies of chamber cutting.
The product is tailored for the 30-06 Springfield cartridge, adhering to SAAMI specifications, and comes with a solid pilot and integral throat.
Product no.: 184050400 CLYMER 308 WINCHESTER FINISHING REAMER Mfr Part: F308WIN Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
184.9GBP10£184.90
*
Delivery time approx. 7-14 days. More than 10 pieces in USA warehouse
Cartridge:
8 mm Mauser (8 x 57 mm Mauser)
Style:
Rimless Rifle
Delivery weight: 0.068kgShipping height: 13mmShipping width: 18mmShipping length: 157mm
Item details
Made in USA
Product no.: 184050510 CLYMER 35 WHELAN FINISHING REAMER Mfr Part: F35WHEL Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
179.9GBP10£179.90
*
Delivery time approx. 7-14 days. More than 10 pieces in USA warehouse
Product no.: 184050004 CLYMER 5.56MM NATO FINISHING REAMER Mfr Part: F5.56NATO Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
184.9GBP10£184.90
*
Delivery time approx. 7-14 days. More than 10 pieces in USA warehouse
Clymer's rimless rifle chambering reamers are made from high-quality M-7 High-Speed Steel for professional gunsmithing and are guaranteed to last a lifetime when properly maintained.
The reamers are precision tools designed to SAAMI specifications, with options for both Rougher and Finisher depending on the volume of chambers to be cut.
These reamers feature a 7/16" round shank with 3/8" square drive, come in 6 right-hand cutting, straight flutes with a solid pilot and integral throat for 5.56 mm NATO cartridges.
Attributes
Cartridge:
5.56 mm NATO
Style:
Rimless Rifle
Delivery weight: 0.045kgShipping height: 15mmShipping width: 15mmShipping length: 140mm
Item details
Made in USA
Enhance your precision with the CLYMER Rimless Rifle Chambering Reamer for .257 Roberts. Ideal for finishing! 🔧 Order yours today!
Finest Workmanship & Quality; Made In USA From M-7 High Speed Steel
Made by Clymer, a truly dedicated group of gun people, from best quality, M-7 High-Speed Steel. These are precision tools for the professional gunsmith and will give a lifetime of service when properly cared for. Fully guaranteed. Roughers are .010" smaller in diameter than the final size, do not cut the throat area and should be used to save wear on the Finish Reamer when many chambers are to be cut. If only a few chambers will be cut, a Finish Reamer is all you need. Superb quality reamers made to SAAMI specifications.
Note: If you do not see the caliber you are looking for below, please feel free to contact our Special Orders Department, as many additional items are avaliable from Clymer.
SPECS: RIFLE REAMERS - 6, right-hand cutting, straight flutes. Solid pilot, integral throat. Stocked in Rougher and Finisher. 7/16" round shank with 3/8" square drive. ¼" round shank on .22 RF. ORDERING: Advise: 1) Stock #. 2) Cartridge Caliber and Name.
More...
Customer ratings for CLYMER 257 ROBERTS FINISHING REAMER
Number of ratings: 9
From brownells.com: 9
Average rating: 3.7
Works well(11/06/2011)
Using the methods outlined in Sweeney's AR-15 Gunsmithing volume, and lubed with Do-Drill, I was able to adjust the headspace on a new, non-chromed barrel. Less than a half-dozen turns brought the chamber to the point where the stripped bolt would just close on a Clymer GO gauge. With the gauge then lengthened by .003" using a piece of tape, I further adjusted the headspace with an additional 3/4 turn of the reamer. Now the bolt closes on the lengthened gauge but not on a NO-GO gauge. This should produce an accurate rifle.
Beautiful finishing reamer(30/04/2015)
Leaves a great finish, spec's out perfectly, and is a great value for the money.
Sharp as a razor(11/05/2015)
I used this to hand ream a short chambered barrel there was no chatter what-so-ever and the chamber was left with a mirror-like finish. I used plain ATF to lubricate this reamer and it worked great. It finished the chamber in 4 or 5 passes.
Good reamer(01/12/2013)
I heard bad things about Clymer reamers, but wasn't disappointed. Cut the chamber smooth and chatter free. I am happy.
Chatter(27/09/2010)
Clymer reamers have become notorious for chatter lately. I have had a couple that chattered, and several of my Gunsmith colleagues have had the same thing. I would not recommend the reamers by this company, as their quality has gone downhill in the past few years. My reamer chattered so bad so fast that the chamber was almost not salvageable.
Excessive chatter(12/09/2009)
Having used Clymer reramers in the past, I expected no problems. When I used this reamer it started to chatter immediately. Regardless of lathe speed or feed rate I was unable to eliminate the chatter. Thanks to the folks at Brownells, I was not stuck with this poorly made tool. I will continue to use Clymer reamers in the future, which I already have, but will think twice before buying another one.
CLYMER REAMER in .243 Winchester (14/10/2017)
If It works as intended, I shall be able to close my Remington 700 bolt with a cartridge in place with ease. My new Shilen 26" Chrome-Moly barrel with 1 in 10" twist is beautiful and almost ready to lock-and-load. So, I will inform you soon as to how the reamer performed. My main bullets are: Hornaday 75 grain V-Max and Swift Scirocco II 90 grain Bonded. I have no images yet, because I am not ready to disclose my findings. Cliffy
not worth spending the money on(04/03/2010)
Bought Clymer reamer because of reputation - MISTAKE. Even with a floating reamer holder, I couldn't make it stop chattering. Had to set barrel back & start over with another brand of reamer (worked great)
.223 reamer...finishing(08/06/2011)
This was used to extend the life of AR15 barrels that were getting a little long in the throat. The barrel extension is removed, 0.062 removed from the barrel shoulder (one thread) and the reamer is used to deepen the chamber 0.060. A "shot out" Krieger and a RR barrel were renewed and their usable lives were extended by a 2-3 thousand rounds.