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Home Reloading Case Preparation Neck Turning Turning & Expander Mandrels SINCLAIR INTERNATIONAL STAINLESS STEEL EXPANDER MANDRELS Support
Sierra Sale!
Enhance precision with our 7mm Stainless Steel Expander Mandrels 🔧. Perfect fit for NT-3000 and NT-1000 neck turning tools!

SINCLAIR INTERNATIONAL STAINLESS STEEL EXPANDER MANDRELS - SINCLAIR INTERNATIONAL 7MM (.283") STAINLESS EXPANDER MANDREL

749001176

Variations:

Enhance precision with our 7mm Stainless Steel Expander Mandrels 🔧. Perfect fit for NT-3000 and NT-1000 neck turning tools!
SINCLAIR INTERNATIONAL 7MM (.283") STAINLESS EXPANDER MANDREL
15.9 GBP 19 £15.90 *
Caliber: 284 Caliber, 7mm Diameter (in): 0.283 Product no.: 749001176
In stock
15.9 GBP 19 £15.90 *
Ask question
Enhance precision with our 17 Caliber Stainless Steel Expander Mandrel. Perfect fit for neck turning tools! 🔧 Get yours today!
SINCLAIR INTERNATIONAL 17 CALIBER (.171") STAINLESS EXPANDER MANDREL
15.9 GBP 19 £15.90 *
Caliber: 17 Caliber Diameter (in): 0.171 Product no.: 749001145
In stock
15.9 GBP 19 £15.90 *
Ask question
Enhance precision with our 338 Caliber Stainless Steel Expander Mandrel 🔧. Perfect for neck turning tools and easy case sizing!
SINCLAIR INTERNATIONAL 338 CALIBER (.337") STAINLESS EXPANDER MANDREL
15.9 GBP 17 £15.90 *
Caliber: 338 Caliber Diameter (in): 0.337 Product no.: 749001158
In stock
15.9 GBP 17 £15.90 *
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Enhance your neck turning precision with our 25 Caliber Stainless Steel Expander Mandrel. Perfect fit for NT-3000 & NT-1000 tools! 🔧
SINCLAIR INTERNATIONAL 25 CALIBER (.256") STAINLESS EXPANDER MANDREL
15.9 GBP 8 £15.90 *
Caliber: 25 Caliber Diameter (in): 0.256 Product no.: 749001161
In stock
15.9 GBP 8 £15.90 *
Ask question
Enhance precision with our 20 Caliber Stainless Steel Expander Mandrel. Perfect fit for neck turning tools! 🔧 Elevate your reloading experience.
SINCLAIR INTERNATIONAL 20 CALIBER (.203") STAINLESS EXPANDER MANDREL
15.9 GBP 3 £15.90 *
Caliber: 20 Caliber Diameter (in): 0.203 Product no.: 749001164
In stock
15.9 GBP 3 £15.90 *
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Enhance your neck turning precision with our STAINLESS STEEL EXPANDER MANDRELS. Perfect fit for 270 Caliber cases! 🔧 Get yours today!
SINCLAIR INTERNATIONAL 270 CALIBER (.276") STAINLESS EXPANDER MANDREL
15.9 GBP 7 £15.90 *
Caliber: 270 Caliber, 6.8mm Diameter (in): 0.276 Product no.: 749001165
In stock
15.9 GBP 7 £15.90 *
Ask question
Discover the precision of our 6.5mm Stainless Steel Expander Mandrels 🔧. Perfect fit for NT-3000 & NT-1000 tools, enhancing your neck turning process!
SINCLAIR INTERNATIONAL 6.5MM (.263") STAINLESS EXPANDER MANDREL
17.9 GBP 41 £17.90 *
Caliber: 6.5mm, 264 Caliber Diameter (in): 0.263 Product no.: 749001179
In stock
17.9 GBP 41 £17.90 *
Ask question
Enhance your neck turning with our 6mm Stainless Steel Expander Mandrel 🔧. Precision engineered for perfect fitting and ease of use!
SINCLAIR INTERNATIONAL 6MM (.242") STAINLESS EXPANDER MANDREL
15.9 GBP 26 £15.90 *
Caliber: 243 Caliber, 6mm Diameter (in): 0.242 Product no.: 749001182
In stock
15.9 GBP 26 £15.90 *
Ask question
Enhance your neck turning precision with our 30 Caliber Stainless Steel Expander Mandrel. Perfect fit for accurate results! 🔧
SINCLAIR INTERNATIONAL 30 CALIBER (.307") STAINLESS EXPANDER MANDREL
15.9 GBP 74 £15.90 *
Caliber: 30 Caliber Diameter (in): 0.307 Product no.: 749001183
In stock
15.9 GBP 74 £15.90 *
Ask question
Enhance your reloading precision with our stainless steel expander mandrels for 22 caliber (.223")🔧. Perfect fit for NT-3000 & NT-1000 tools!
SINCLAIR INTERNATIONAL 22 CALIBER (.223") STAINLESS EXPANDER MANDREL
17.9 GBP 65 £17.90 *
Caliber: 22 Caliber Diameter (in): 0.223 Product no.: 749001187
In stock
17.9 GBP 65 £17.90 *
Ask question
Discover the Sinclair 8mm Stainless Steel Expander Mandrel for precision turning. Perfect for your next project! 🔧
SINCLAIR INTERNATIONAL 8MM (.322") STAINLESS EXPANDER MANDREL
15.9 GBP 11 £15.90 *
Caliber: 8mm, 32 Caliber Diameter (in): 0.322 Product no.: 749011523
In stock
15.9 GBP 11 £15.90 *
Ask question
15.9 17.9 11 GBP
15.9 GBP £15.90

Prices inclusive of duty & VAT.

Product no.: 749001176

Mfr. No.: E28

Our neck turning tool mandrels are made from high grade stainless steel on Precision turning centers. The shape, finish, and size are the result of years of use and experimentation by many hand loaders. All of our mandrels fit both our NT-3000 and NT-1000 neck turning tools and most of our older model neck turning tools. Our neck turning tool mandrels measure approximately about .002"" less than the bullet diameter for the caliber. Our expander mandrels are made .001"" larger than the turning mandrels. Using an expander mandrel prior to neck turning sizes the case to fit the neck turning mandrels perfectly. This correct fit makes the turning process more precise and much easier. Any of the mandrels can be used to ""neck"" cases up to the next caliber when used with the NT-EXP (Expander Body).
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Variations:

Enhance precision with our 7mm Stainless Steel Expander Mandrels 🔧. Perfect fit for NT-3000 and NT-1000 neck turning tools!
SINCLAIR INTERNATIONAL 7MM (.283") STAINLESS EXPANDER MANDREL
15.9 GBP 19 £15.90 *
Caliber: 284 Caliber, 7mm Diameter (in): 0.283 Product no.: 749001176
In stock
15.9 GBP 19 £15.90 *
Ask question
Enhance precision with our 17 Caliber Stainless Steel Expander Mandrel. Perfect fit for neck turning tools! 🔧 Get yours today!
SINCLAIR INTERNATIONAL 17 CALIBER (.171") STAINLESS EXPANDER MANDREL
15.9 GBP 19 £15.90 *
Caliber: 17 Caliber Diameter (in): 0.171 Product no.: 749001145
In stock
15.9 GBP 19 £15.90 *
Ask question
Enhance precision with our 338 Caliber Stainless Steel Expander Mandrel 🔧. Perfect for neck turning tools and easy case sizing!
SINCLAIR INTERNATIONAL 338 CALIBER (.337") STAINLESS EXPANDER MANDREL
15.9 GBP 17 £15.90 *
Caliber: 338 Caliber Diameter (in): 0.337 Product no.: 749001158
In stock
15.9 GBP 17 £15.90 *
Ask question
Enhance your neck turning precision with our 25 Caliber Stainless Steel Expander Mandrel. Perfect fit for NT-3000 & NT-1000 tools! 🔧
SINCLAIR INTERNATIONAL 25 CALIBER (.256") STAINLESS EXPANDER MANDREL
15.9 GBP 8 £15.90 *
Caliber: 25 Caliber Diameter (in): 0.256 Product no.: 749001161
In stock
15.9 GBP 8 £15.90 *
Ask question
Enhance precision with our 20 Caliber Stainless Steel Expander Mandrel. Perfect fit for neck turning tools! 🔧 Elevate your reloading experience.
SINCLAIR INTERNATIONAL 20 CALIBER (.203") STAINLESS EXPANDER MANDREL
15.9 GBP 3 £15.90 *
Caliber: 20 Caliber Diameter (in): 0.203 Product no.: 749001164
In stock
15.9 GBP 3 £15.90 *
Ask question
Enhance your neck turning precision with our STAINLESS STEEL EXPANDER MANDRELS. Perfect fit for 270 Caliber cases! 🔧 Get yours today!
SINCLAIR INTERNATIONAL 270 CALIBER (.276") STAINLESS EXPANDER MANDREL
15.9 GBP 7 £15.90 *
Caliber: 270 Caliber, 6.8mm Diameter (in): 0.276 Product no.: 749001165
In stock
15.9 GBP 7 £15.90 *
Ask question
Discover the precision of our 6.5mm Stainless Steel Expander Mandrels 🔧. Perfect fit for NT-3000 & NT-1000 tools, enhancing your neck turning process!
SINCLAIR INTERNATIONAL 6.5MM (.263") STAINLESS EXPANDER MANDREL
17.9 GBP 41 £17.90 *
Caliber: 6.5mm, 264 Caliber Diameter (in): 0.263 Product no.: 749001179
In stock
17.9 GBP 41 £17.90 *
Ask question
Enhance your neck turning with our 6mm Stainless Steel Expander Mandrel 🔧. Precision engineered for perfect fitting and ease of use!
SINCLAIR INTERNATIONAL 6MM (.242") STAINLESS EXPANDER MANDREL
15.9 GBP 26 £15.90 *
Caliber: 243 Caliber, 6mm Diameter (in): 0.242 Product no.: 749001182
In stock
15.9 GBP 26 £15.90 *
Ask question
Enhance your neck turning precision with our 30 Caliber Stainless Steel Expander Mandrel. Perfect fit for accurate results! 🔧
SINCLAIR INTERNATIONAL 30 CALIBER (.307") STAINLESS EXPANDER MANDREL
15.9 GBP 74 £15.90 *
Caliber: 30 Caliber Diameter (in): 0.307 Product no.: 749001183
In stock
15.9 GBP 74 £15.90 *
Ask question
Enhance your reloading precision with our stainless steel expander mandrels for 22 caliber (.223")🔧. Perfect fit for NT-3000 & NT-1000 tools!
SINCLAIR INTERNATIONAL 22 CALIBER (.223") STAINLESS EXPANDER MANDREL
17.9 GBP 65 £17.90 *
Caliber: 22 Caliber Diameter (in): 0.223 Product no.: 749001187
In stock
17.9 GBP 65 £17.90 *
Ask question
Discover the Sinclair 8mm Stainless Steel Expander Mandrel for precision turning. Perfect for your next project! 🔧
SINCLAIR INTERNATIONAL 8MM (.322") STAINLESS EXPANDER MANDREL
15.9 GBP 11 £15.90 *
Caliber: 8mm, 32 Caliber Diameter (in): 0.322 Product no.: 749011523
In stock
15.9 GBP 11 £15.90 *
Ask question

Description:

Our neck turning tool mandrels are made from high grade stainless steel on Precision turning centers. The shape, finish, and size are the result of years of use and experimentation by many hand loaders. All of our mandrels fit both our NT-3000 and NT-1000 neck turning tools and most of our older model neck turning tools. Our neck turning tool mandrels measure approximately about .002"" less than the bullet diameter for the caliber. Our expander mandrels are made .001"" larger than the turning mandrels. Using an expander mandrel prior to neck turning sizes the case to fit the neck turning mandrels perfectly. This correct fit makes the turning process more precise and much easier. Any of the mandrels can be used to ""neck"" cases up to the next caliber when used with the NT-EXP (Expander Body).

Top takeaways

  1. The mandrels are precision-made from high-grade stainless steel and designed to fit both the NT-3000 and NT-1000 neck turning tools, as well as most older models.
  2. Expander mandrels are 0.001" larger than turning mandrels, ensuring a perfect fit for the neck turning process, leading to more precision and ease.
  3. These mandrels can also be used for "necking" cases up to the next caliber with the NT-EXP Expander Body.

Attributes

  • Caliber: 7mm,284 Caliber
  • Diameter (in): 0.283
  • Delivery weight: 0.023kg
  • Shipping height: 10mm
  • Shipping width: 10mm
  • Shipping length: 64mm

Item details

Made in USA

Customers reviews

Customer ratings (3)

3.7 / 5
Recommended

Brownells USA Need for lube ! 30/08/2016

Works OK… if one complies w/ the ABSOLUTE need for lubing either the mandrel (?) or inside the case neck. Do consider groups WILL BE larger because 1) CBTO is not consistent and 2) not being consistent, pressures may increase due to change (.0.002±) brought about by neck tension variation(s) w/ NEW brass. In the end, 100 rounds fired to reach "perfection" of CBTO. So why use the Gen-II set up ?

Definitely recommended

Brownells USA Works Great 19/02/2016

Works very well. Very smooth.

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