If you’re new to rotary broaching and just want to know the basics, keep these few points in mind:

1. Chamfer to the sharp corners of the broach

2. Oversize pilot hole (3% for hexagons, 10% for squares)

3. Leave room for chips in the bottom of the hole


These suggestions also apply to rotary broaching stainless steel:

1. Slower feed rate, about .001 IPR

2. Slower RPM (50-100) until contact .005-.010″ deep, then ramp up to full RPM


For more information, contact sales@polygonsolutions.com

Polygon Solution's GT Rotary Broach Holder

Polygon Solution’s GT Rotary Broach Holder