초록 ▼

A cutting tool assembly for cutting holes in a work piece is disclosed. The assembly includes a cutting tool member with a cylindrical cutting member, a shank member, and a guide means providing at least one guide surface tapering from the cutting member to the shank member to assist in removing the

A cutting tool assembly for cutting holes in a work piece is disclosed. The assembly includes a cutting tool member with a cylindrical cutting member, a shank member, and a guide means providing at least one guide surface tapering from the cutting member to the shank member to assist in removing the assembly from a hole cut in the work piece. Also disclosed is a conical guide member that fastens to a cutting tool providing a guide surface for the stated purpose.

대표청구항 ▼

[ I claim:] [1.] A hole cutting tool and guide assembly for cutting an aperture in a work piece comprising:(a) a hole cutting tool member having a cylindrical cutting member with a cylindrical surface of selected circumference, said cylindrical cutting member having a plurality of circumference cutt

[ I claim:] [1.] A hole cutting tool and guide assembly for cutting an aperture in a work piece comprising:(a) a hole cutting tool member having a cylindrical cutting member with a cylindrical surface of selected circumference, said cylindrical cutting member having a plurality of circumference cutting teeth on a first end thereof, an anchoring point member centered on said first end thereof, and a shank member extending from a second end of said cylindrical cutting member opposite said cylindrical cutting member first end, said shank member having a circumference less than said selected circumference of said cylindrical cutting member, said shank member adapted for rotating said cutting tool member; and(b) guide means providing at least one guide surface tapering from said cylindrical surface adjacent said second end of said cylindrical cutting member toward said shank member, said guide means assisting in removal of said cutting tool member from the aperture formed by said cutting tool cylindrical cutting member.