Metal cutting tool

Details Metal cutting tool Metal cutting tool

1988-08-04

1991-09-17

Bilinsky, Z. R.

Cutting by use of rotating axially moving tool

Tool or tool with support

With work-engaging structure detachable from cutting edge

408 67, 408205, 408209, 408703, B23B 5104

Patent

active

050490109

ABSTRACT:
A metal cutting tool is disclosed which includes a cylindrical cutting body (12) having an outer cylindrical surface (13) approximating the size of the hole desired and an inner wall (14) which tapers towards a base (15). The cutter body further includes a notch (17) for removal of cutting chips which has a socket disposed on the leading edge thereof. A carbide cutting tip (26) is disposed in the socket with the cutting tip being substantially pyramidically shaped, having a blunt cutting edge (35) extending above the cutter body. The metal cutting tool further includes a pilot bit (36) extending axially through the center of the cutter body, with the pilot including a short fluted (37) section which extends above the top of the cutting tip and provides a pilot hole for guiding the cutting tip during hole cutting. The metal cutting tool is extremely durable and is particularly suited for use with a hand held drill, providing a minimum of resistance during cutting, reducing tip binding or breakage and thereby providing smooth holes in sheet metal at field locations.

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