.500 Shank Diameter

Double Hex Broaches

DIAMETER: .500" Shank Diameter

 


ENGLISH SIZES / 1.75 Overall Length

Nominal Sizes (in) B Part #
1/4" Double Hex Broach .253 502-253
9/32" Double Hex Broach .284 502-284
5/16" Double Hex Broach .316 502-316
11/32" Double Hex Broach .347 502-347
3/8" Double Hex Broach .379 502-379
13/32" Double Hex Broach .410 502-410
7/16" Double Hex Broach .442 502-442
15/32" Double Hex Broach .473 502-473
1/2" Double Hex Broach .505 502-505
17/32" Double Hex Broach .536 502-536
9/16" Double Hex Broach .568 502-568
19/32" Double Hex Broach .599 502-599
5/8" Double Hex Broach .631 502-631
21/32" Double Hex Broach .662 502-662
11/16" Double Hex Broach .694 502-694
23/32" Double Hex Broach .725 502-725

METRIC SIZES / 1.75 Overall Length

Nominal Sizes (mm) B Part #
6.00mm Double Hex Broach .240 502-240
7.00mm Double Hex Broach .279 502-279
8.00mm Double Hex Broach .320 502-320
9.00mm Double Hex Broach .358 502-358
10.00mm Double Hex Broach .399 502-399
11.00mm Double Hex Broach .437 502-437
12.00mm Double Hex Broach .478 502-478
13.00mm Double Hex Broach .517 502-517
14.00mm Double Hex Broach .557 502-557
15.00mm Double Hex Broach .597 502-597
16.00mm Double Hex Broach .636 502-636
17.00mm Double Hex Broach .678 502-678
18.00mm Double Hex Broach .715 502-715
19.00mm Double Hex Broach .758 502-758

ENGLISH SIZES / 2.25 Overall Length

Nominal Sizes (in) B Part #
1/4" Double Hex Broach .253 542-253
9/32" Double Hex Broach .284 542-284
5/16" Double Hex Broach .316 542-316
11/32" Double Hex Broach .347 542-347
3/8" Double Hex Broach .379 542-379
13/32" Double Hex Broach .410 542-410
7/16" Double Hex Broach .442 542-442
15/32" Double Hex Broach .473 542-473
1/2" Double Hex Broach .505 542-505
17/32" Double Hex Broach .536 542-536
9/16" Double Hex Broach .568 542-568
19/32" Double Hex Broach .599 542-599
5/8" Double Hex Broach .631 542-631
21/32" Double Hex Broach .662 542-662
11/16" Double Hex Broach .694 542-694
23/32" Double Hex Broach .725 542-725
3/4" Double Hex Broach .757 542-757

METRIC SIZES / 2.25 Overall Length

Nominal Sizes (mm) B Part #
6.00mm Double Hex Broach .240 542-240
7.00mm Double Hex Broach .279 542-279
8.00mm Double Hex Broach .320 542-320
9.00mm Double Hex Broach .358 542-358
10.00mm Double Hex Broach .399 542-399
11.00mm Double Hex Broach .437 542-437
12.00mm Double Hex Broach .478 542-478
13.00mm Double Hex Broach .517 542-517
14.00mm Double Hex Broach .557 542-557
15.00mm Double Hex Broach .597 542-597
16.00mm Double Hex Broach .636 542-636
17.00mm Double Hex Broach .678 542-678
18.00mm Double Hex Broach .715 542-715
19.00mm Double Hex Broach .758 542-758

COATING OPTIONS

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.

MATERIAL OPTIONS

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.

OTHER CUSTOM OPTIONS

  • Custom Overall Lengths Available (including 28mm)
  • Custom Cut Lengths Available
  • Custom dimensions
  • MICRO forms
  • Corner radius
  • Single or Double Vent Holes
  • Flat on shank can be aligned with form (for holding orientation)

Internal Broaching Part Preparation

Pre-Drill Hole Diameter:

  • A pre-drill hole is required for internal broaching.
  • The pre-drill hole must be at least equal to the minor diameter of the broach. It is strongly recommended to open the hole diameter larger than the minor diameter.
  • See below formulas for recommended pre-drill hole diameters of hex and square forms.

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 internal rotary broaching, going from the major diameter to the minor diameter of the form.

Speeds and Feeds

Speeds and feed rates for rotary broaching will depend on the material you are broaching and size form. Please refer to the Slater Tools Speeds and Feeds Chart.

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