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Set of 12 Round Smoothing Broaches-Size Range-0.68mm to 4.5mm - Otto Frei
Grobet USA

Set of 12 Round Smoothing Broaches-Size Range-0.68mm to 4.5mm

Part # 115.513 Only 1 left Weight <0.1 lb / <5 g
$72.00

Availability Sold out

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Description

This set of 12 round smoothing broaches covers a size range of 0.68 mm – 4.5 mm, giving jewelers, watchmakers, and metalsmiths a comprehensive selection for cleaning and finishing holes in metalwork. Made of high-quality steel and uniformly tempered, these broaches are built for consistent performance and long service life.

These are English Pattern Broaches, sized according to the Stubs grading system — a measuring standard originating in England. The Stubs numbers correspond to markings from an English screw plate created by Peter Stubs of Warrington, Lancashire, a renowned maker of watch and clockmaking tools in the early 1800s. This system remains widely used in professional watchmaking and jewelry trades.

Please note: these broaches are sold as a set only and are not available for individual purchase.

Features

  • Set of 12 round smoothing broaches in graduated sizes
  • Made of high-quality steel, uniformly tempered for extended durability
  • English Pattern design using the Stubs sizing grading system
  • Suitable for cleaning and finishing holes in jewelry and watch components
  • Length varies by size: from 66 mm (2-5/8") for the smallest (Stubs #70) to 150 mm (5-7/8") for the largest (Stubs #15)
  • Not available individually — sold as a complete set only

Specifications

Set Quantity 12 broaches
Size Range 0.68 mm – 4.5 mm
Sizing System Stubs (English Pattern)
Stubs Size Range #15 (largest) – #70 (smallest)
Length Range 66 mm (2-5/8") – 150 mm (5-7/8")
Material High-quality steel, uniformly tempered
Pattern English Pattern (round smoothing)

What's Included

  • 12 round smoothing broaches, size range 0.68 mm – 4.5 mm (Stubs #70 – #15)

Specifications

Brand
Grobet USA
Part #
115.513
Type
Broaches & Burnishers
Dimensions
9 in x 2.5 in x 0.5 in
Set Quantity
12 broaches
Size Range
0.68 mm – 4.5 mm
Sizing System
Stubs (English Pattern)
Stubs Size Range
#15 (largest) – #70 (smallest)
Length Range
66 mm (2-5/8") – 150 mm (5-7/8")
Material
High-quality steel, uniformly tempered
Pattern
English Pattern (round smoothing)
California Prop 65 Warning California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.

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