Set of 12 Cutting Broaches-Sizes Range-0.4mm to 4.5mm

This set of 12 five-sided cutting broaches covers a wide diameter range, making it an essential tool for jewelers, watchmakers, and clockmakers who need to cut, clean, and finish holes with precision. Made of high-quality steel and uniformly tempered for extended tool life, these broaches are sized according to the English Stubs grading system — a traditional measuring standard originating in England and widely referenced in watch and clock making.

The set spans from the smallest broach (Stubs #70), which tapers from 0.4 mm at the tip to 0.7 mm at the handle, up to the largest (Stubs #15), which ranges from 3.3 mm to 4.5 mm. Overall lengths range from 66 mm (2-5/8") for the smallest to 150 mm (5-7/8") for the largest. These broaches are sold as a set only and are not available individually.

Features

• Five-sided cutting profile for precise hole cutting, cleaning, and finishing
• Made of high-quality steel, uniformly tempered for long service life
• Set of 12 broaches covering diameters from 0.4 mm to 4.5 mm
• Sized using the traditional English Stubs grading system
• Lengths vary by size: 66 mm (2-5/8") for smallest to 150 mm (5-7/8") for largest
• Sold as a complete set — not available individually

Specifications

What's Included

• Stubs #70 — 0.4 mm to 0.7 mm
• Stubs #64 — 0.5 mm to 0.9 mm
• Stubs #60 — 0.7 mm to 1.0 mm
• Stubs #55 — 0.8 mm to 1.3 mm
• Stubs #53 — 1.0 mm to 1.5 mm
• Stubs #49 — 1.2 mm to 1.8 mm
• Stubs #46 — 1.4 mm to 2.0 mm
• Stubs #44 — 1.6 mm to 2.2 mm
• Stubs #36 — 2.0 mm to 2.7 mm
• Stubs #31 — 2.2 mm to 3.0 mm
• Stubs #28 — 2.6 mm to 3.5 mm
• Stubs #15 — 3.3 mm to 4.5 mm

Notes

These broaches follow the English Pattern Broach design and use the Stubs sizing system — a grading standard originating from screw plate markings by Peter Stubs of Warrington, Lancashire, a well-known maker of watch and clockmaking tools active in the early 1800s. This set is sold as a complete unit; individual broaches from this set are not available for separate purchase.