Balls - Tooling - One Piece - Construction - Stainless Steel

Balls -> Tooling -> One Piece -> Construction -> Stainless Steel

There are 2 products in the sub-categories of Balls - Tooling - One Piece - Construction - Stainless Steel. Browse the Balls - Tooling - One Piece - Construction - Stainless Steel products table.

Category Details

A selection of Stainless Steel Construction One Piece Tooling Balls. 440C Stainless Steel heat treated to 55-58 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.
  • Precise shoulder base to ball centre line dimension within +/- 0.00508mm.
  • Ball and shank are concentric within 5 microns (0.0002 in.) TIR.

Miniature Bearings Australia - MBA Minibearings

Additional resources:


A more concise listing may be found in the Balls - Tooling - One Piece - Construction - Stainless Steel 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
Tooling Balls - 12.7x6.35x7.938 mm One Piece - Stainless Steel Ball
Diameter (A)
12.700
mm
+/- 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.350
mm
+/- 0.0051
(Equiv. 0.25 in.)
Base to Centre (C)
7.938
mm
Shoulder to Centre (D)
7.938
mm
Shoulder Diameter (E)
12.446
mm
+/- 0.0051
Base Type
Solid
Tooling Balls - 12.7x6.35x7.938 mm One Piece - Stainless Steel Ball
Material: Stainless Steel   
Part Number: BLTO-01270-S440-C1 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 30, 2026
$79.86 AUD
$95.84 AUD $79.86 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
Tooling Balls - 12.7x6.35x7.938 mm One Piece - Stainless Steel Ball
Diameter (A)
12.700
mm
+/- 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.350
mm
+/- 0.0051
(Equiv. 0.25 in.)
Base to Centre (C)
7.938
mm
Shoulder to Centre (D)
7.938
mm
Tooling Balls - 12.7x6.35x7.938 mm One Piece - Stainless Steel Ball
Material: Stainless Steel    Shoulder Diameter (E): 12.446 mm +/- 0.0051    Base Type: Solid   
Part Number: BLTO-01270-S440-C1 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 30, 2026
$79.86 AUD
$95.84 AUD $79.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Tooling Balls - 12.7x6.35x7.938 mm One Piece - Stainless Steel Ball
Diameter (A)
12.700
mm
+/- 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.350
mm
+/- 0.0051
(Equiv. 0.25 in.)
Base to Centre (C)
7.938
mm
Shoulder to Centre (D)
7.938
mm
Shoulder Diameter (E)
12.446
mm
+/- 0.0051
Base Type
Tapped 6-32 UNC
Tooling Balls - 12.7x6.35x7.938 mm One Piece - Stainless Steel Ball
Material: Stainless Steel   
Part Number: BLTO-01270-S440-C1-T (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 30, 2026
$111.05 AUD
$133.25 AUD $111.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Tooling Balls - 12.7x6.35x7.938 mm One Piece - Stainless Steel Ball
Diameter (A)
12.700
mm
+/- 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.350
mm
+/- 0.0051
(Equiv. 0.25 in.)
Base to Centre (C)
7.938
mm
Shoulder to Centre (D)
7.938
mm
Tooling Balls - 12.7x6.35x7.938 mm One Piece - Stainless Steel Ball
Material: Stainless Steel    Shoulder Diameter (E): 12.446 mm +/- 0.0051    Base Type: Tapped 6-32 UNC   
Part Number: BLTO-01270-S440-C1-T (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 30, 2026
$111.05 AUD
$133.25 AUD $111.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.