Hexagon Rotary Broaches with 1/2″ Shank

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.

1/2″ 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
7/64″ Hexagon Rotary Broach	.1110	.222		H01110B	$56.00
1/8″ Hexagon Rotary Broach	.1265	.253		H01265B	$56.00
9/64″ Hexagon Rotary Broach	.1425	.285		H01425B	$56.00
5/32″ Hexagon Rotary Broach	.1585	.317		H01585B	$56.00
3/16″ Hexagon Rotary Broach	.1895	.379		H01895B	$56.00
7/32″ Hexagon Rotary Broach	.2215	.443		H02215B	$56.00
1/4″ Hexagon Rotary Broach	.2525	.505		H02525B	$56.00
9/32″ Hexagon Rotary Broach	.2840	.568		H02840B	$56.00
5/16″ Hexagon Rotary Broach	.3155	.631		H03155B	$56.00
11/32″ Hex Rotary Broach	.3470	.694		H03470B	$56.00
3/8″ Hexagon Rotary Broach	.3785	.757		H03785B	$56.00
13/32″ Hex Rotary Broach	.4100	.800		H04100B	$56.00
7/16″ Hexagon Rotary Broach	.4415	.800		H04415B	$71.00
15/32″ Hex Rotary Broach	.4730	.800		H04730B	$71.00
1/2″ Hexagon Rotary Broach	.5045	.800		H05045B	$71.00
17/32″ Hex Rotary Broach	.5360	.800		H05360B	$71.00
9/16″ Hexagon Rotary Broach	.5675	.800		H05675B	$71.00
19/32″ Hex Rotary Broach	.5990	1.010		H05990B	$71.00
5/8″ Hexagon Rotary Broach	.6305	1.010		H06305B	$71.00
21/32″ Hex Rotary Broach	.6620	1.010		H06620B	$71.00
3/4″ Hexagon Rotary Broach	.7565	1.010		H07565B	$96.00
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
2.50mm Hexagon Rotary Broach	.1010	.202		H01010B	$56.00
3mm Hexagon Rotary Broach	.1210	.242		H01210B	$56.00
3.5mm Hexagon Rotary Broach	.1410	.282		H01410B	$56.00
4mm Hexagon Rotary Broach	.1610	.322		H01610B	$56.00
5mm Hexagon Rotary Broach	.2000	.400		H02000B	$56.00
6mm Hexagon Rotary Broach	.2400	.480		H02400B	$56.00
7mm Hexagon Rotary Broach	.2790	.558		H02790B	$56.00
8mm Hexagon Rotary Broach	.3185	.637		H03185B	$56.00
9mm Hexagon Rotary Broach	.3580	.716		H03580B	$56.00
10mm Hexagon Rotary Broach	.3985	.757		H03985B	$56.00
11mm Hexagon Rotary Broach	.4370	.800		H04370B	$71.00
12mm Hexagon Rotary Broach	.4775	.800		H04775B	$71.00
13mm Hexagon Rotary Broach	.5170	.800		H05170B	$71.00
14mm Hexagon Rotary Broach	.5565	.800		H05565B	$71.00
15mm Hex Rotary Broach	.5965	1.010		H05965B	$71.00
16mm Hex Rotary Broach	.6355	1.010		H06355B	$71.00
17mm Hex Rotary Broach	.6750	1.010		H06750B	$71.00
18mm Hex Rotary Broach	.7150	1.010		H07150B	$96.00
19mm Hex Rotary Broach	.7545	1.010		H07545B	$96.00
Don’t see the size you are looking for? Click here to use our Design Your Own Rotary Broach App.

• Custom Dimension
• Cut Length
• Dish Angle
• Vent Holes
• Tolerance
• Corner Radius

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.

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.

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.

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.

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.

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
9/64″ Hexagon Rotary Broach	.142	.142	H0142B	$49.99
5/32″ Hexagon Rotary Broach	.157	.157	H0157B	$49.99
3/16″ Hexagon Rotary Broach	.189	.189	H0189B	$49.99
7/32″ Hexagon Rotary Broach	.220	.220	H0220B	$49.99
1/4″ Hexagon Rotary Broach	.252	.252	H0252B	$49.99
5/16″ Hexagon Rotary Broach	.315	.315	H0315B	$49.99
3/8″ Hexagon Rotary Broach	.378	.378	H0378B	$49.99

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
4mm Hexagon Rotary Broach	.160	.160	H0160B	$49.99
5mm Hexagon Rotary Broach	.199	.199	H0199B	$49.99
6mm Hexagon Rotary Broach	.239	.239	H0239B	$49.99
7mm Hexagon Rotary Broach	.278	.278	H0278B	$49.99
8mm Hexagon Rotary Broach	.318	.318	H0318B	$49.99
9mm Hexagon Rotary Broach	.357	.357	H0357B	$49.99
10mm Hexagon Rotary Broach	.398	.398	H0398B	$49.99