Micro Hexagon Rotary Broaches (8mm x 28mm OAL)

Polygon Solutions’ 8mm shank x 28mm overall length 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 8mm shank x 28mm overall length 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.
View our micro rotary broach tool holder for these broaches.

8mm Shank Diameter x 28mm Overall Length
All Broaches Larger than 5/64″ Include Pressure Relief Vent Hole

Nominal Size (Inches)	Across Flats (A)	Broaching Depth (B)	Includes Vent Hole	Part Number	Price	Order
.050″ Hexagon Micro Rotary Broach	.0510	.102		H00510C	$54.00
1/16″ Hexagon Micro Rotary Broach	.0635	.127		H00635C	$54.00
5/64″ Hexagon Micro Rotary Broach	.0790	.158		H00790C	$54.00
3/32″ Hexagon Micro Rotary Broach	.0950	.190		H00950C	$54.00
7/64″ Hexagon Micro Rotary Broach	.1110	.222		H01110C	$54.00
1/8″ Hexagon Micro Rotary Broach	.1265	.253		H01265C	$54.00
9/64″ Hexagon Micro Rotary Broach	.1425	.285		H01425C	$54.00
5/32″ Hexagon Micro Rotary Broach	.1585	.317		H01585C	$54.00
11/64″ Hexagon Micro Rotary Broach	.1740	.348		H01740C	$54.00
3/16″ Hexagon Micro Rotary Broach	.1895	.379		H01895C	$54.00
7/32″ Hexagon Micro Rotary Broach	.2215	.443		H02215C	$54.00
1/4″ Hexagon Micro Rotary Broach	.2525	.505		H02525C	$54.00

Nominal Size (Metric)	Across Flats (A)	Broaching Depth (B)	Includes Vent Hole	Part Number	Price	Order
1.30mm Hexagon Micro Rotary Broach	.0515	.103		H00515C	$54.00
1.50mm Hexagon Micro Rotary Broach	.0610	.122		H00610C	$54.00
2mm Hexagon Micro Rotary Broach	.0810	.162		H00810C	$54.00
2.50mm Hexagon Micro Rotary Broach	.1010	.202		H01010C	$54.00
3mm Hexagon Micro Rotary Broach	.1210	.242		H01210C	$54.00
3.50mm Hexagon Micro Rotary Broach	.1410	.282		H01410C	$54.00
4mm Hexagon Micro Rotary Broach	.1610	.322		H01610C	$54.00
5mm Hexagon Micro Rotary Broach	.2000	.400		H02000C	$54.00
6mm Hexagon Micro Rotary Broach	.2400	.480		H02400C	$54.00

• 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.