Double Square Rotary Broach Tool
Double square rotary broach tools are all custom made as no international standard exists. However, most are made to the customer’s specified dimensions for standard socket drivers. These are the same dimensions used for many of Polygon Solutions’ standard square broaches.
The size of double square forms that can be made by rotary broaching is limited by the amount of material to be removed. Usually, material removal is limited to .025” per side. This limitation keeps most double hexagon forms under 1/2 inch flat-to-flat dimension.
Oversize pilot holes are required for all double square rotary broaching applications. The pilot hole will leave a small radius at the inside corners. This radius is often acceptable because contact is still made at the outside corners.
Due to manufacturing limitations, there is a small radius on the broach at the inside corner of a double square. However, this radius cannot be found in the finished product because the oversize pilot hole diameter removes part material in this area. The oversize pilot hole is critical to creating separated chips while broaching and reducing the pressure required to cut the form.
To request a quote on a Double Square Rotary Broach fill out our online quote form or call us at 239-628-4800.