Collection: Balls - Tooling - Two Piece - Press Fit - Shoulder

Balls (With Images)

Tooling

Two Piece

Press Fit

Shoulder
Standard

9 Products in this selection

High quality tooling balls provide a precise reference point for critical machining operations. Available with slip fit or light press fit shank diameters.
Precision ground shoulder provides precise C dimension to facilitate locating ball centre line.
1144 steel heat treated to 53-57 RC
Knurled shoulder.
Weld between ball and shank is designed so the ball will fall off if subject to unusually heavy lateral force, preventing set up and inspection errors that may occur because of a bent shaft.

Additional resources:
Balls Master Catalogue PDF

A more concise listing may be found on the Smallparts store at Balls - Tooling - Two Piece - Press Fit - Shoulder. Smallparts promote the most popular MBA products.

Diameter (A)	Shank Diameter (B)	Base to Centre (C)	Shoulder to Centre (D)	Shoulder Diameter (E)
Diameter (A) 6.350 mm +/- 0.0051 _{(0.25 in.)}	Shank Diameter (B) 3.175 mm + 0.0000 / - 0.0076 _{(0.125 in.)}	Base to Centre (C) 14.224 mm _{(0.56 in.)}	Shoulder to Centre (D) 5.080 mm
Material: Carbon Steel
Part Number: BLTO-00635-CS-S2P Tooling Balls - 6.35x3.175x14.224 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $96.41 AUD Regular price Sale price $96.41 AUD Unit price per Each
Diameter (A)	Shank Diameter (B)	Base to Centre (C)	Shoulder to Centre (D)	Indicative Image
Diameter (A) 6.350 mm +/- 0.0051 _{(0.25 in.)}	Shank Diameter (B) 3.175 mm + 0.0000 / - 0.0076 _{(0.125 in.)}	Base to Centre (C) 14.224 mm _{(0.56 in.)}	Shoulder to Centre (D) 5.080 mm
Material: Carbon Steel
Part Number: BLTO-00635-CS-S2P Tooling Balls - 6.35x3.175x14.224 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $96.41 AUD Regular price Sale price $96.41 AUD Unit price per Each View the product page first if you are unsure.
BLTO-00635-CS-S2P --- Tooling Balls - 6.35x3.175x14.224 mm - Carbon Steel BLTO-00635-CS-S2P --- Tooling Balls - 6.35x3.175x14.224 mm - Carbon Steel Regular price $96.41 AUD Regular price Sale price $96.41 AUD Unit price per Out of stock! Backorder Now
Diameter (A) 9.525 mm +/- 0.0051 _{(0.375 in.)}	Shank Diameter (B) 4.763 mm + 0.0000 / - 0.0076 _{(0.188 in.)}	Base to Centre (C) 19.050 mm _{(0.75 in.)}	Shoulder to Centre (D) 7.620 mm
Material: Carbon Steel
Part Number: BLTO-00953-CS-S2P Tooling Balls - 9.525x4.763x19.05 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $98.59 AUD Regular price Sale price $98.59 AUD Unit price per Each
Diameter (A) 9.525 mm +/- 0.0051 _{(0.375 in.)}	Shank Diameter (B) 4.763 mm + 0.0000 / - 0.0076 _{(0.188 in.)}	Base to Centre (C) 19.050 mm _{(0.75 in.)}	Shoulder to Centre (D) 7.620 mm
Material: Carbon Steel
Part Number: BLTO-00953-CS-S2P Tooling Balls - 9.525x4.763x19.05 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $98.59 AUD Regular price Sale price $98.59 AUD Unit price per Each View the product page first if you are unsure.
BLTO-00953-CS-S2P --- Tooling Balls - 9.525x4.763x19.05 mm - Carbon Steel BLTO-00953-CS-S2P --- Tooling Balls - 9.525x4.763x19.05 mm - Carbon Steel Regular price $98.59 AUD Regular price Sale price $98.59 AUD Unit price per Out of stock! Backorder Now
Diameter (A) 12.700 mm +/- 0.0051 _{(0.5 in.)}	Shank Diameter (B) 6.350 mm + 0.0000 / - 0.0076 _{(0.25 in.)}	Base to Centre (C) 23.876 mm _{(0.94 in.)}	Shoulder to Centre (D) 10.160 mm
Material: Carbon Steel
Part Number: BLTO-01270-CS-S2P-A Tooling Balls - 12.7x6.35x23.876 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $94.50 AUD Regular price Sale price $94.50 AUD Unit price per Each
Diameter (A) 12.700 mm +/- 0.0051 _{(0.5 in.)}	Shank Diameter (B) 6.350 mm + 0.0000 / - 0.0076 _{(0.25 in.)}	Base to Centre (C) 23.876 mm _{(0.94 in.)}	Shoulder to Centre (D) 10.160 mm
Material: Carbon Steel
Part Number: BLTO-01270-CS-S2P-A Tooling Balls - 12.7x6.35x23.876 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $94.50 AUD Regular price Sale price $94.50 AUD Unit price per Each View the product page first if you are unsure.
BLTO-01270-CS-S2P-A --- Tooling Balls - 12.7x6.35x23.876 mm - Carbon Steel BLTO-01270-CS-S2P-A --- Tooling Balls - 12.7x6.35x23.876 mm - Carbon Steel Regular price $94.50 AUD Regular price Sale price $94.50 AUD Unit price per Out of stock! Backorder Now
Diameter (A) 12.700 mm +/- 0.0051 _{(0.5 in.)}	Shank Diameter (B) 6.350 mm + 0.0000 / - 0.0076 _{(0.25 in.)}	Base to Centre (C) 28.575 mm _{(1.125 in.)}	Shoulder to Centre (D) 12.700 mm
Material: Carbon Steel
Part Number: BLTO-01270-CS-S2P-B Tooling Balls - 12.7x6.35x28.575 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $145.77 AUD Regular price Sale price $145.77 AUD Unit price per Each
Diameter (A) 12.700 mm +/- 0.0051 _{(0.5 in.)}	Shank Diameter (B) 6.350 mm + 0.0000 / - 0.0076 _{(0.25 in.)}	Base to Centre (C) 28.575 mm _{(1.125 in.)}	Shoulder to Centre (D) 12.700 mm
Material: Carbon Steel
Part Number: BLTO-01270-CS-S2P-B Tooling Balls - 12.7x6.35x28.575 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $145.77 AUD Regular price Sale price $145.77 AUD Unit price per Each View the product page first if you are unsure.
BLTO-01270-CS-S2P-B --- Tooling Balls - 12.7x6.35x28.575 mm - Carbon Steel BLTO-01270-CS-S2P-B --- Tooling Balls - 12.7x6.35x28.575 mm - Carbon Steel Regular price $145.77 AUD Regular price Sale price $145.77 AUD Unit price per Out of stock! Backorder Now
Diameter (A) 12.700 mm +/- 0.0051 _{(0.5 in.)}	Shank Diameter (B) 6.350 mm + 0.0000 / - 0.0076 _{(0.25 in.)}	Base to Centre (C) 34.925 mm _{(1.375 in.)}	Shoulder to Centre (D) 12.700 mm
Material: Carbon Steel
Part Number: BLTO-01270-CS-S2P-C Tooling Balls - 12.7x6.35x34.925 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $66.32 AUD Regular price Sale price $66.32 AUD Unit price per Each
Diameter (A) 12.700 mm +/- 0.0051 _{(0.5 in.)}	Shank Diameter (B) 6.350 mm + 0.0000 / - 0.0076 _{(0.25 in.)}	Base to Centre (C) 34.925 mm _{(1.375 in.)}	Shoulder to Centre (D) 12.700 mm
Material: Carbon Steel
Part Number: BLTO-01270-CS-S2P-C Tooling Balls - 12.7x6.35x34.925 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $66.32 AUD Regular price Sale price $66.32 AUD Unit price per Each View the product page first if you are unsure.
BLTO-01270-CS-S2P-C --- Tooling Balls - 12.7x6.35x34.925 mm - Carbon Steel BLTO-01270-CS-S2P-C --- Tooling Balls - 12.7x6.35x34.925 mm - Carbon Steel Regular price $66.32 AUD Regular price Sale price $66.32 AUD Unit price per Out of stock! Backorder Now
Diameter (A) 12.700 mm +/- 0.0051 _{(0.5 in.)}	Shank Diameter (B) 6.350 mm + 0.0000 / - 0.0076 _{(0.25 in.)}	Base to Centre (C) 41.275 mm _{(1.625 in.)}	Shoulder to Centre (D) 25.400 mm
Material: Carbon Steel
Part Number: BLTO-01270-CS-S2P-D Tooling Balls - 12.7x6.35x41.275 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $80.59 AUD Regular price Sale price $80.59 AUD Unit price per Each
Diameter (A) 12.700 mm +/- 0.0051 _{(0.5 in.)}	Shank Diameter (B) 6.350 mm + 0.0000 / - 0.0076 _{(0.25 in.)}	Base to Centre (C) 41.275 mm _{(1.625 in.)}	Shoulder to Centre (D) 25.400 mm
Material: Carbon Steel
Part Number: BLTO-01270-CS-S2P-D Tooling Balls - 12.7x6.35x41.275 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $80.59 AUD Regular price Sale price $80.59 AUD Unit price per Each View the product page first if you are unsure.
BLTO-01270-CS-S2P-D --- Tooling Balls - 12.7x6.35x41.275 mm - Carbon Steel BLTO-01270-CS-S2P-D --- Tooling Balls - 12.7x6.35x41.275 mm - Carbon Steel Regular price $80.59 AUD Regular price Sale price $80.59 AUD Unit price per Out of stock! Backorder Now
Diameter (A) 15.875 mm +/- 0.0051 _{(0.625 in.)}	Shank Diameter (B) 7.938 mm + 0.0000 / - 0.0076 _{(0.313 in.)}	Base to Centre (C) 26.670 mm _{(1.05 in.)}	Shoulder to Centre (D) 11.430 mm
Material: Carbon Steel
Part Number: BLTO-01588-CS-S2P Tooling Balls - 15.875x7.938x26.67 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $118.77 AUD Regular price Sale price $118.77 AUD Unit price per Each
Diameter (A) 15.875 mm +/- 0.0051 _{(0.625 in.)}	Shank Diameter (B) 7.938 mm + 0.0000 / - 0.0076 _{(0.313 in.)}	Base to Centre (C) 26.670 mm _{(1.05 in.)}	Shoulder to Centre (D) 11.430 mm
Material: Carbon Steel
Part Number: BLTO-01588-CS-S2P Tooling Balls - 15.875x7.938x26.67 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $118.77 AUD Regular price Sale price $118.77 AUD Unit price per Each View the product page first if you are unsure.
BLTO-01588-CS-S2P --- Tooling Balls - 15.875x7.938x26.67 mm - Carbon Steel BLTO-01588-CS-S2P --- Tooling Balls - 15.875x7.938x26.67 mm - Carbon Steel Regular price $118.77 AUD Regular price Sale price $118.77 AUD Unit price per Out of stock! Backorder Now
Diameter (A) 19.050 mm +/- 0.0051 _{(0.75 in.)}	Shank Diameter (B) 9.525 mm + 0.0000 / - 0.0076 _{(0.375 in.)}	Base to Centre (C) 31.750 mm _{(1.25 in.)}	Shoulder to Centre (D) 12.700 mm
Material: Carbon Steel
Part Number: BLTO-01905-CS-S2P Tooling Balls - 19.05x9.525x31.75 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $105.05 AUD Regular price Sale price $105.05 AUD Unit price per Each
Diameter (A) 19.050 mm +/- 0.0051 _{(0.75 in.)}	Shank Diameter (B) 9.525 mm + 0.0000 / - 0.0076 _{(0.375 in.)}	Base to Centre (C) 31.750 mm _{(1.25 in.)}	Shoulder to Centre (D) 12.700 mm
Material: Carbon Steel
Part Number: BLTO-01905-CS-S2P Tooling Balls - 19.05x9.525x31.75 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $105.05 AUD Regular price Sale price $105.05 AUD Unit price per Each View the product page first if you are unsure.
BLTO-01905-CS-S2P --- Tooling Balls - 19.05x9.525x31.75 mm - Carbon Steel BLTO-01905-CS-S2P --- Tooling Balls - 19.05x9.525x31.75 mm - Carbon Steel Regular price $105.05 AUD Regular price Sale price $105.05 AUD Unit price per Out of stock! Backorder Now
Diameter (A) 25.400 mm +/- 0.0051 _{(1 in.)}	Shank Diameter (B) 12.700 mm + 0.0000 / - 0.0076 _{(0.5 in.)}	Base to Centre (C) 41.275 mm _{(1.625 in.)}	Shoulder to Centre (D) 17.780 mm
Material: Carbon Steel
Part Number: BLTO-02540-CS-S2P Tooling Balls - 25.4x12.7x41.275 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $235.32 AUD Regular price Sale price $235.32 AUD Unit price per Each
Diameter (A) 25.400 mm +/- 0.0051 _{(1 in.)}	Shank Diameter (B) 12.700 mm + 0.0000 / - 0.0076 _{(0.5 in.)}	Base to Centre (C) 41.275 mm _{(1.625 in.)}	Shoulder to Centre (D) 17.780 mm
Material: Carbon Steel
Part Number: BLTO-02540-CS-S2P Tooling Balls - 25.4x12.7x41.275 mm - Carbon Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $235.32 AUD Regular price Sale price $235.32 AUD Unit price per Each View the product page first if you are unsure.
BLTO-02540-CS-S2P --- Tooling Balls - 25.4x12.7x41.275 mm - Carbon Steel BLTO-02540-CS-S2P --- Tooling Balls - 25.4x12.7x41.275 mm - Carbon Steel Regular price $235.32 AUD Regular price Sale price $235.32 AUD Unit price per Out of stock! Backorder Now