Patent ID: 8647022

Claim:
A broaching apparatus comprising: a first tooth comprising: a front face; a rear face opposite the front face; a first cutting surface with a lobed shape extending along a first side of the first tooth between the front face and the rear face such that a first interface defined between the first cutting surface and the front face is offset relative to a second interface defined between the first cutting surface and the rear face in a direction that is substantially perpendicular to an axis of tooth movement for broaching operations to provide tool clearance rearward from the first interface; a tool body having a tool retention channel; a first attachment notch located in the first tooth at a location spaced from the first cutting surface; a clamp at least partially inserted into the first attachment notch of the first tooth to retain the first tooth at least partially within the tool retention channel of the tool body, wherein the clamp is secured to the tool body with at least one fastener; and a set screw threadably engaged with the clamp and adjustably engageable with the first attachment notch in the first tooth.