.500 Shank Diameter

Hex Punch Broaches

DIAMETER: .500" Shank Diameter



Nominal Sizes (in) B Part #
3/32" Hex Punch 0.095 SP5-6-095
7/64" Hex Punch 0.111 SP5-6-111
1/8" Hex Punch 0.127 SP5-6-127
9/64" Hex Punch 0.142 SP5-6-142
5/32" Hex Punch 0.159 SP5-6-159
3/16" Hex Punch 0.190 SP5-6-190
7/32" Hex Punch 0.222 SP5-6-222
1/4" Hex Punch 0.253 SP5-6-253
9/32" Hex Punch 0.284 SP5-6-284
5/16" Hex Punch 0.316 SP5-6-316
11/32" Hex Punch 0.347 SP5-6-347
3/8" Hex Punch 0.379 SP5-6-379
13/32" Hex Punch 0.410 SP5-6-410
7/16" Hex Punch 0.442 SP5-6-442
15/32" Hex Punch 0.473 SP5-6-473
1/2" Hex Punch 0.505 SP5-6-505
17/32" Hex Punch 0.536 SP5-6-536
9/16" Hex Punch 0.568 SP5-6-568
19/32" Hex Punch 0.599 SP5-6-599
5/8" Hex Punch 0.631 SP5-6-631
21/32" Hex Punch 0.662 SP5-6-662
11/16" Hex Punch 0.694 SP5-6-694
23/32" Hex Punch 0.725 SP5-6-725
3/4" Hex Punch 0.757 SP5-6-757


Nominal Sizes (mm) B Part #
2mm Hex Punch 0.081 SP5-6-081
2.5mm Hex Punch 0.101 SP5-6-101
3mm Hex Punch 0.121 SP5-6-121
4mm Hex Punch 0.161 SP5-6-161
5mm Hex Punch 0.200 SP5-6-200
6mm Hex Punch 0.240 SP5-6-240
7mm Hex Punch 0.279 SP5-6-279
8mm Hex Punch 0.320 SP5-6-320
9mm Hex Punch 0.358 SP5-6-358
10mm Hex Punch 0.399 SP5-6-399
11mm Hex Punch 0.437 SP5-6-437
12mm Hex Punch 0.478 SP5-6-478
13mm Hex Punch 0.517 SP5-6-517
14mm Hex Punch 0.557 SP5-6-557
15mm Hex Punch 0.597 SP5-6-597
16mm Hex Punch 0.636 SP5-6-636
17mm Hex Punch 0.678 SP5-6-678
18mm Hex Punch 0.715 SP5-6-715
19mm Hex Punch 0.758 SP5-6-758


Titanium Nitride (TiN)
TiN is a gold colored PVD coating made of exceptionally hard ceramic material that improves lubricity, increases hardness and enhances abrasive wear resistance leading to increased broach tool life.

Titanium Carbonitride (TiCN)
TiCN is a purple-gray colored PVD coating formed by the addition of carbon to the TiN formula. The elevated hardness and low residual stress lead to excellent abrasive wear resistance. TiCN coating also increases lubricity of the broach and performs well under high load conditions. TiCN is commonly used in medical and aerospace applications broaching small forms in stainless steel and titanium materials.

Titanium Aluminum Nitride (TiAIN)
TiAlN is a dark gray colored PVD coating that can be used in high temperature conditions and for better lubricity. Harder than TiN, TiAlN has excellent abrasive wear resistance and is used successfully to broach many materials such as titanium, aluminum, stainless steels, and alloy steels.


M2 High Speed Steel
M2 is a molybdenum based high speed steel that is characterized by abrasion resistance, toughness and good red hardness. Slater Tools' hardened M2 broaches have an ideal balance of bending strength, toughness and wear resistance. M2 is used in a wide range of rotary broaching applications and is suitable for any broachable material.  

PM M4 High Speed Steel
PM M4 is a molybdenum-tungsten high speed steel, which is produced with a very consistent and refined structure. This structure gives PM M4 broaches several enhanced properties including improved toughness and better wear resistance. This material is good for stainless steel and titanium applications for decreased wear.  

T15 High Speed Steel
PMT15 is a high-carbon tungsten-cobalt-vanadium high speed steel, composed of very fine grain structures. T15 has excellent red hardness and abrasion resistance. Like the PM M4, the structure of PM T15 broaches improves toughness and is a good choice for improving overall broach tool life.


  • Custom overall tool lengths
  • Custom cut lengths
  • Special across-the-flat dimensions
  • Corner radius
  • Spun ground diameter on broach corners
  • Single or double vent holes
  • Alterations to flat on broach tool shank

Index Punch Broaching Part Preparation

Pre-Drill Hole Diameter:

  • A pre-drill hole is required for index punch broaching.
    • The pre-drill hole must be at least equal to the minor diameter of the finished form. It is strongly recommended to open the hole diameter larger than the minor diameter.

Pre-Drill Hole Depth:

  • The depth of the pre-drill hole must be greater than the broaching depth to allow for chips to accumulate and avoid excess packing.
  • If chips must be removed after broaching, it can be done with a drill or boring tool. A recess at the bottom of the pre-drill will allow the chips to break cleanly. The recess diameter should be larger than the major diameter of the broach.
  • It is recommended to have a pre-drill depth of 1.75 x depth of broached area.

Lead Chamfer:

  • A 45° lead chamfer must be provided for successful index punch broaching, going from the major diameter to the minor diameter of the form.

Machine Setup Parameters

  • Position broach tool a sufficient distance away from face of workpiece to allow for acceleration to full cutting speed
  • Use machine’s peck mode and feed to the desired depth. Alternatively, program the machine to rapid in and then retract the tool in .005 increments
  • Spindle lock or ability to program lock is required