Patent ID: 9682431
Date: 2017-06-20
CPC Classifications: B23B,Y10T

Claim:
1. A hole-saw, comprising: a cylindrical body with a first cutting edge formed at a first end of the body that is open, the first cutting edge disposed about a rotational axis of the body, wherein the cylindrical body has first slots disposed around the first open end of the body; a plate disposed at a second end of the body, rotationally coupled to the body, and oriented perpendicular to the body's rotational axis, wherein the plate has lateral slots formed through the plate and lateral grooves formed in a distal surface of the plate in an orientation transverse to the slots, wherein the plate comprises a plurality of anti-rotational tabs that are disposed around the plate's outer circumference and that are configured to engage respective ones of the first slots when the plate is coupled to the first end of the cylindrical body, wherein each anti-rotational tab extends laterally outward beyond an outer wall of the plate; a mandrel that includes: a clamping member with a body that is movable along the mandrel's longitudinal axis to engage a proximal surface of the plate and clamp the plate between the clamping member and the bosses resting in the plate's grooves, so as to rotationally couple the body, plate, and mandrel.