What type of teeth on a broach make heavier cuts than finishing teeth but lighter than roughing teeth?

Semi-finishing teeth on a broach are specifically designed to bridge the gap between roughing and finishing teeth. They provide a balance between the aggressive material removal of roughing teeth and the precision and fine surface finish of finishing teeth. By utilizing semi-finishing teeth, operators can achieve a more refined cut than roughing teeth while still maintaining the capability for significant material removal—more than what would be accomplished with finishing teeth.

This makes semi-finishing teeth particularly useful in applications where some material needs to be removed effectively yet where a smooth surface finish is not the primary concern. They facilitate a two-step process of roughing followed by finishing, allowing manufacturers to optimize the cutting process for various tasks.