hex rotary broach diagram

Hexagon (Hex) Rotary Broaches (.500″ Shank Diameter)

Polygon Solutions’ 1/2″ shank hexagon rotary broaches are precision ground with a tolerance of +0/-.0005. Each nominal size conforms to the industry standard – ANSI B18.3 2003. All 1/2″ shank hex rotary broach tools include a pressure relief vent hole that allows air and fluid to freely escape during the rotary broaching process to reduce wear on your machine and extend rotary broach tool life. Click Buy Now button to choose broach steel, coatings and quantity.

Download Hex Rotary Broach Brochure1/2″ Shank Diameter x 1-3/4″ Overall Length
All Broaches Listed Include Pressure Relief Vent Hole

Nominal Size
(Inches)		 Across
Flats (A)		 Broaching
Depth (B)		 Includes
Vent Hole		 Part
Number		 Price Order
3/32″ Hexagon Rotary Broach .0950 .190

H00950B $56.00 3/32 hex rotary broach
7/64″ Hexagon Rotary Broach .1110 .222

H01110B $56.00 7/64 hex rotary broach
1/8″ Hexagon Rotary Broach .1265 .253

H01265B $56.00 1/8 hex rotary broach
9/64″ Hexagon Rotary Broach .1425 .285

H01425B $56.00 9/64 hex rotary broach
5/32″ Hexagon Rotary Broach .1585 .317

H01585B $56.00 5/32 hex rotary broach
3/16″ Hexagon Rotary Broach .1895 .379

H01895B $56.00 3/16 hex rotary broach
7/32″ Hexagon Rotary Broach .2215 .443

H02215B $56.00 7/32 hex rotary broach
1/4″ Hexagon Rotary Broach .2525 .505

H02525B $56.00 1/4 hex rotary broach
9/32″ Hexagon Rotary Broach .2840 .568

H02840B $56.00 9/32 hex rotary broach
5/16″ Hexagon Rotary Broach .3155 .631

H03155B $56.00 5/16 hex rotary broach
11/32″ Hex Rotary Broach .3470 .694

H03470B $56.00 11/32 hex rotary broach
3/8″ Hexagon Rotary Broach .3785 .757

H03785B $56.00 3/8 hex rotary broach
13/32″ Hex Rotary Broach .4100 .800

H04100B $56.00 13/32 hex rotary broach
7/16″ Hexagon Rotary Broach .4415 .800

H04415B $71.00 7/16 hex rotary broach
15/32″ Hex Rotary Broach .4730 .800

H04730B $71.00 15/32 hex rotary broach
1/2″ Hexagon Rotary Broach .5045 .800

H05045B $71.00 1/2 hex rotary broach
17/32″ Hex Rotary Broach .5360 .800

H05360B $71.00 17/32 hex rotary broach
9/16″ Hexagon Rotary Broach .5675 .800

H05675B $71.00 9/16 hex rotary broach
19/32″ Hex Rotary Broach .5990 1.010

H05990B $71.00 19/32 hex rotary broach
5/8″ Hexagon Rotary Broach .6305 1.010

H06305B $71.00 5/8 hex rotary broach
21/32″ Hex Rotary Broach .6620 1.010

H06620B $71.00 21/32 hex rotary broach
3/4″ Hexagon Rotary Broach .7565 1.010

H07565B $96.00 3/4 hex rotary broach
Don’t see the size you are looking for? Click here to use our Design Your Own Rotary Broach App.
Nominal Size
(Metric)		 Across
Flats (A)		 Broaching
Depth (B)		 Includes
Vent Hole		 Part
Number		 Price Order
2mm Hexagon Rotary Broach .0810 .162

H00810B $56.00 2mm hex rotary broach
2.50mm Hexagon Rotary Broach .1010 .202

H01010B $56.00 2.5mm hex rotary broach
3mm Hexagon Rotary Broach .1210 .242

H01210B $56.00 3mm hex rotary broach
3.5mm Hexagon Rotary Broach .1410 .282

H01410B $56.00 3.5mm hex rotary broach
4mm Hexagon Rotary Broach .1610 .322

H01610B $56.00 4mm hex rotary broach
5mm Hexagon Rotary Broach .2000 .400

H02000B $56.00 5mm hex rotary broach
6mm Hexagon Rotary Broach .2400 .480

H02400B $56.00 6mm hex rotary broach
7mm Hexagon Rotary Broach .2790 .558

H02790B $56.00 7mm hex rotary broach
8mm Hexagon Rotary Broach .3185 .637

H03185B $56.00 8mm hex rotary broach
9mm Hexagon Rotary Broach .3580 .716

H03580B $56.00 9mm hex rotary broach
10mm Hexagon Rotary Broach .3985 .757

H03985B $56.00 10mm hex rotary broach
11mm Hexagon Rotary Broach .4370 .800

H04370B $71.00 11mm hex rotary broach
12mm Hexagon Rotary Broach .4775 .800

H04775B $71.00 12mm hex rotary broach
13mm Hexagon Rotary Broach .5170 .800

H05170B $71.00 13mm hex rotary broach
14mm Hexagon Rotary Broach .5565 .800

H05565B $71.00 14mm hex rotary broach
15mm Hex Rotary Broach .5965 1.010

H05965B $71.00 15mm hex rotary broach
16mm Hex Rotary Broach .6355 1.010

H06355B $71.00 16mm hex rotary broach
17mm Hex Rotary Broach .6750 1.010

H06750B $71.00 17mm hex rotary broach
18mm Hex Rotary Broach .7150 1.010

H07150B $96.00 18mm hex rotary broach
19mm Hex Rotary Broach .7545 1.010

H07545B $96.00 19mm hex rotary broach
Don’t see the size you are looking for? Click here to use our Design Your Own Rotary Broach App.

Rotary Broach Custom Options

hex-broach-custom-across-the-flats
Our Hex Rotary Broaches can be ordered in custom dimensions. Can’t find the size you’re looking for? Polygon Solutions provides fast delivery on custom ½” or 8mm shank hexagon rotary broaches. Simply specify the desired across flat dimension when ordering. Polygon’s manufacturing tolerance is +0/-.0005”. For example, a custom hex broach with 0.1234” across flat dimension is part number H01234B.
Hex Rotary Broach Custom Broaching Depth
If you need a hex rotary broach to cut deeper than our standard dimensions, perhaps to clear a counter-bore, you can request a custom cut length. Custom cut lengths may be limited by the back-taper on the side of the hex broach, or manufacturing limitations. Please call (239) 628-4800 for more information. Rotary broaching more than 1-2x the across flat dimension may not be successful. Broaches may also be weakened because of a deeper cut length.
Hex Rotary Broach Custom Rake Angle
If you need a hex rotary broach to cut deeper than our standard dimensions, perhaps to clear a counter-bore, you can request a custom cut length. Custom cut lengths may be limited by the back-taper on the side of the hex broach, or manufacturing limitations. Please call (239) 628-4800 for more information. Rotary broaching more than 1-2x the across flat dimension may not be successful. Broaches may also be weakened because of a deeper cut length.
Single vent holes are standard with hex rotary broach forms larger than .079″ and allow air and/or fluid to pass though the hex broach and reduce any hydraulic pressure that may occur when broaching a blind hole. Polygon’s rotary broach tool holder is also designed with this feature. However, an additional cross vent hole can be added for holders without the pressure relief system.
Hex Rotary Broach Custom Dimensions
All of Polygon Solution’s hexagon rotary broaches are manufactured with a +0/-.0005” tolerance. However, hex broaches can be manufactured to a tighter +0/-.0004” tolerance. If you want to use the broach as a gauge, the hex broach can also be manufactured without a back-taper. For more information, see Rotary Broach Gauges.
Custom Corner Radius
If you part allows for a corner radius, we can add a spun ground diameter to the hex broach to remove the sharp corners. The spun ground diameter is useful for reducing the chip size and pressure required for long tool life and successful rotary broaching operations.

Basic Rotary Broaches

These basic hexagon rotary broaches are Made in the USA by Polygon Solutions Inc. for inventive machinists in home workshop, prototype and other non-production settings. Basic rotary broach cutting tools are made from high quality M-2 high speed steel with a practical +/-.001″ across flat form tolerance that meet the ASME B18.3-2003 standard for Hexagon Sockets. The broaches feature a 1/2″ shank diameter and 1.75” overall length to fit the most common brands of rotary broach tool holders. The rake angle and depth of cut make Polygon’s broaches the perfect choice for machining small blind and through holes.

1/2″ Shank Diameter x 1-3/4″ Overall Length
Basic broaches do not include Polygon’s pressure relief hole and
cannot be made to custom dimensions or ordered with material or coating options.

Nominal Size (Inches) Across Flats (A) Broaching Depth (B) Part # Price Order
1/8″ Hexagon Rotary Broach .126 .126 H0126B $49.99
1/8 hex rotary broach
9/64″ Hexagon Rotary Broach .142 .142 H0142B $49.99
9/64 hex rotary broach
5/32″ Hexagon Rotary Broach .157 .157 H0157B $49.99
5/32 hex rotary broach
3/16″ Hexagon Rotary Broach .189 .189 H0189B $49.99
3/16 hex rotary broach
7/32″ Hexagon Rotary Broach .220 .220 H0220B $49.99
7/32 hex rotary broach
1/4″ Hexagon Rotary Broach .252 .252 H0252B $49.99
1/4 hex rotary broach
5/16″ Hexagon Rotary Broach .315 .315 H0315B $49.99
5/16 hex rotary broach
3/8″ Hexagon Rotary Broach .378 .378 H0378B $49.99
3/8 hex rotary broach

 

Metric Size Basic Hexagon Rotary Broaches

Nominal Size (Metric) Across Flats (A) Broaching Depth (B) Part # Price Order
3mm Hexagon Rotary Broach .120 .120 H0120B $49.99
3mm hex rotary broach
4mm Hexagon Rotary Broach .160 .160 H0160B $49.99
4mm hex rotary broach
5mm Hexagon Rotary Broach .199 .199 H0199B $49.99
5mm hex rotary broach
6mm Hexagon Rotary Broach .239 .239 H0239B $49.99
6mm hex rotary broach
7mm Hexagon Rotary Broach .278 .278 H0278B $49.99
7mm hex rotary broach
8mm Hexagon Rotary Broach .318 .318 H0318B $49.99
8mm hex rotary broach
9mm Hexagon Rotary Broach .357 .357 H0357B $49.99
9mm hex rotary broach
10mm Hexagon Rotary Broach .398 .398 H0398B $49.99
10mm hex rotary broach