Balls - Tooling - Two Piece - Press Fit - Shoulder

Balls -> Tooling -> Two Piece -> Press Fit -> Shoulder

There are 9 products in the sub-categories of Balls - Tooling - Two Piece - Press Fit - Shoulder. Browse the Balls - Tooling - Two Piece - Press Fit - Shoulder products table.

Category Details

A selection of Shoulder Press Fit Two Piece Tooling Balls. 1144 steel heat treated to 53-57 RC

  • High quality tooling balls provide a precise reference point for critical machining operations.
  • Tooling balls, also known as tooling spheres or precision spheres, are precision components used in fixture design, tooling setup, and alignment applications.
  • Tooling balls are made of hardened steel or other materials with high wear resistance and precision-ground surfaces.
  • Available with slip fit or light press fit shank diameters.
  • Precision ground shoulder provides precise C dimension to facilitate locating ball centre line.
  • 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.

Miniature Bearings Australia - MBA Minibearings

Additional resources:


A more concise listing may be found in the Balls - Tooling - Two Piece - Press Fit - Shoulder category on the Small Parts & Bearings online store.
Diameter (A) Shank Diameter (B) Base to Centre (C) Shoulder to Centre (D) Shoulder Diameter (E) Base Type Indicative
Image
Diameter (A)
6.350
mm
+/- 0.0051
(Equiv. 0.25 in.)
Shank Diameter (B)
3.175
mm
+ 0.0000 / - 0.0076
(Equiv. 0.125 in.)
Base to Centre (C)
14.224
mm

(Equiv. 0.56 in.)
Shoulder to Centre (D)
5.080
mm
Tooling Balls - 6.35x3.175x14.224 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-00635-CS-S2P
Tooling Balls - 6.35x3.175x14.224 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$128.68 AUD
$128.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A) Shank Diameter (B) Base to Centre (C) Shoulder to Centre (D) Indicative
Image
Diameter (A)
6.350
mm
+/- 0.0051
(Equiv. 0.25 in.)
Shank Diameter (B)
3.175
mm
+ 0.0000 / - 0.0076
(Equiv. 0.125 in.)
Base to Centre (C)
14.224
mm

(Equiv. 0.56 in.)
Shoulder to Centre (D)
5.080
mm
Tooling Balls - 6.35x3.175x14.224 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-00635-CS-S2P
Tooling Balls - 6.35x3.175x14.224 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$128.68 AUD
$128.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A)
9.525
mm
+/- 0.0051
(Equiv. 0.375 in.)
Shank Diameter (B)
4.763
mm
+ 0.0000 / - 0.0076
(Equiv. 0.188 in.)
Base to Centre (C)
19.050
mm

(Equiv. 0.75 in.)
Shoulder to Centre (D)
7.620
mm
Tooling Balls - 9.525x4.763x19.05 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-00953-CS-S2P
Tooling Balls - 9.525x4.763x19.05 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$113.86 AUD
$136.64 AUD $113.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A)
9.525
mm
+/- 0.0051
(Equiv. 0.375 in.)
Shank Diameter (B)
4.763
mm
+ 0.0000 / - 0.0076
(Equiv. 0.188 in.)
Base to Centre (C)
19.050
mm

(Equiv. 0.75 in.)
Shoulder to Centre (D)
7.620
mm
Tooling Balls - 9.525x4.763x19.05 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-00953-CS-S2P
Tooling Balls - 9.525x4.763x19.05 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$113.86 AUD
$136.64 AUD $113.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+/- 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.350
mm
+ 0.0000 / - 0.0076
(Equiv. 0.25 in.)
Base to Centre (C)
23.876
mm

(Equiv. 0.94 in.)
Shoulder to Centre (D)
10.160
mm
Tooling Balls - 12.7x6.35x23.876 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-01270-CS-S2P-A
Tooling Balls - 12.7x6.35x23.876 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$114.41 AUD
$137.29 AUD $114.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+/- 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.350
mm
+ 0.0000 / - 0.0076
(Equiv. 0.25 in.)
Base to Centre (C)
23.876
mm

(Equiv. 0.94 in.)
Shoulder to Centre (D)
10.160
mm
Tooling Balls - 12.7x6.35x23.876 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-01270-CS-S2P-A
Tooling Balls - 12.7x6.35x23.876 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$114.41 AUD
$137.29 AUD $114.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+/- 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.350
mm
+ 0.0000 / - 0.0076
(Equiv. 0.25 in.)
Base to Centre (C)
28.575
mm

(Equiv. 1.125 in.)
Shoulder to Centre (D)
12.700
mm
Tooling Balls - 12.7x6.35x28.575 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-01270-CS-S2P-B
Tooling Balls - 12.7x6.35x28.575 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$162.95 AUD
$195.55 AUD $162.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+/- 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.350
mm
+ 0.0000 / - 0.0076
(Equiv. 0.25 in.)
Base to Centre (C)
28.575
mm

(Equiv. 1.125 in.)
Shoulder to Centre (D)
12.700
mm
Tooling Balls - 12.7x6.35x28.575 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-01270-CS-S2P-B
Tooling Balls - 12.7x6.35x28.575 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$162.95 AUD
$195.55 AUD $162.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+/- 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.350
mm
+ 0.0000 / - 0.0076
(Equiv. 0.25 in.)
Base to Centre (C)
34.925
mm

(Equiv. 1.375 in.)
Shoulder to Centre (D)
12.700
mm
Tooling Balls - 12.7x6.35x34.925 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-01270-CS-S2P-C
Tooling Balls - 12.7x6.35x34.925 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$115.95 AUD
$139.15 AUD $115.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+/- 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.350
mm
+ 0.0000 / - 0.0076
(Equiv. 0.25 in.)
Base to Centre (C)
34.925
mm

(Equiv. 1.375 in.)
Shoulder to Centre (D)
12.700
mm
Tooling Balls - 12.7x6.35x34.925 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-01270-CS-S2P-C
Tooling Balls - 12.7x6.35x34.925 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$115.95 AUD
$139.15 AUD $115.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+/- 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.350
mm
+ 0.0000 / - 0.0076
(Equiv. 0.25 in.)
Base to Centre (C)
41.275
mm

(Equiv. 1.625 in.)
Shoulder to Centre (D)
25.400
mm
Tooling Balls - 12.7x6.35x41.275 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-01270-CS-S2P-D
Tooling Balls - 12.7x6.35x41.275 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$141.50 AUD
$169.80 AUD $141.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+/- 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.350
mm
+ 0.0000 / - 0.0076
(Equiv. 0.25 in.)
Base to Centre (C)
41.275
mm

(Equiv. 1.625 in.)
Shoulder to Centre (D)
25.400
mm
Tooling Balls - 12.7x6.35x41.275 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-01270-CS-S2P-D
Tooling Balls - 12.7x6.35x41.275 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$141.50 AUD
$169.80 AUD $141.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A)
15.875
mm
+/- 0.0051
(Equiv. 0.625 in.)
Shank Diameter (B)
7.938
mm
+ 0.0000 / - 0.0076
(Equiv. 0.313 in.)
Base to Centre (C)
26.670
mm

(Equiv. 1.05 in.)
Shoulder to Centre (D)
11.430
mm
Tooling Balls - 15.875x7.938x26.67 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-01588-CS-S2P
Tooling Balls - 15.875x7.938x26.67 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$141.86 AUD
$170.24 AUD $141.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A)
15.875
mm
+/- 0.0051
(Equiv. 0.625 in.)
Shank Diameter (B)
7.938
mm
+ 0.0000 / - 0.0076
(Equiv. 0.313 in.)
Base to Centre (C)
26.670
mm

(Equiv. 1.05 in.)
Shoulder to Centre (D)
11.430
mm
Tooling Balls - 15.875x7.938x26.67 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-01588-CS-S2P
Tooling Balls - 15.875x7.938x26.67 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$141.86 AUD
$170.24 AUD $141.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A)
19.050
mm
+/- 0.0051
(Equiv. 0.75 in.)
Shank Diameter (B)
9.525
mm
+ 0.0000 / - 0.0076
(Equiv. 0.375 in.)
Base to Centre (C)
31.750
mm

(Equiv. 1.25 in.)
Shoulder to Centre (D)
12.700
mm
Tooling Balls - 19.05x9.525x31.75 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-01905-CS-S2P
Tooling Balls - 19.05x9.525x31.75 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$197.86 AUD
$237.44 AUD $197.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A)
19.050
mm
+/- 0.0051
(Equiv. 0.75 in.)
Shank Diameter (B)
9.525
mm
+ 0.0000 / - 0.0076
(Equiv. 0.375 in.)
Base to Centre (C)
31.750
mm

(Equiv. 1.25 in.)
Shoulder to Centre (D)
12.700
mm
Tooling Balls - 19.05x9.525x31.75 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-01905-CS-S2P
Tooling Balls - 19.05x9.525x31.75 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$197.86 AUD
$237.44 AUD $197.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A)
25.400
mm
+/- 0.0051
(Equiv. 1 in.)
Shank Diameter (B)
12.700
mm
+ 0.0000 / - 0.0076
(Equiv. 0.5 in.)
Base to Centre (C)
41.275
mm

(Equiv. 1.625 in.)
Shoulder to Centre (D)
17.780
mm
Tooling Balls - 25.4x12.7x41.275 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-02540-CS-S2P
Tooling Balls - 25.4x12.7x41.275 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$261.32 AUD
$313.58 AUD $261.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (A)
25.400
mm
+/- 0.0051
(Equiv. 1 in.)
Shank Diameter (B)
12.700
mm
+ 0.0000 / - 0.0076
(Equiv. 0.5 in.)
Base to Centre (C)
41.275
mm

(Equiv. 1.625 in.)
Shoulder to Centre (D)
17.780
mm
Tooling Balls - 25.4x12.7x41.275 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BLTO-02540-CS-S2P
Tooling Balls - 25.4x12.7x41.275 mm Two Piece - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$261.32 AUD
$313.58 AUD $261.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.