Slater Tools: Number one for Rotary Branding
.315 Shank Diameter

Serration Broaches

Slater Tools offers precision ground Internal Serration Rotary Broaches designed to be used individually or as mating parts with Slater's External Standard Serration Rotary Broaches. When mating the internal with the external serration, there will be a .0028" per side tooth clearance. Internal and External Serration Rotary Broaches can be produced with a variety of custom options.
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  • Serration Broaches
    .315" Shank Diameter

  • 1.25" Overall Length
  • Order: Refer to individual order numbers below
.315 Shank Diameter .315 Shank Diameter Mechanical Image

Standard Sizes

Standard Size (in)
# of Teeth B Order #
5/16" Serration Broach 11 .3165 303-3165
5/16" Serration Broach 15 .3165 305-3165
5/16" Serration Broach 19 .3165 307-3165
11/32" Serration Broach 12 .3480 303-3480
11/32" Serration Broach 16 .3480 305-3480
11/32" Serration Broach 21 .3480 307-3480
3/8" Serration Broach 14 .3790 303-3790
3/8" Serration Broach 18 .3790 305-3790
3/8" Serration Broach 23 .3790 307-3790

Available Internal Broach Options:

  • Coatings: TiN, TiCN, TiAlN
  • Materials: M2, PM4, T15 High Speed Tool Steels
  • Different overall lengths (including 28mm)
  • Custom cut lengths
  • Custom major and minor dimensions
  • Any desired number of teeth
  • Custom tooth profiles
  • MICRO forms
  • Corner radius
  • Spun ground diameter on broach corners
  • Single or double vent holes
  • Flat on shank can be aligned with flat on form (for holding orientation)
  • Re-sharpening
  • Quantity discounts at 5, 10, 30, 50, 100, 150, 200 pieces