Hole cutter

Details Hole cutter Hole cutter

1984-05-04

1986-05-06

Bilinsky, Z. R.

Cutting by use of rotating axially moving tool

Tool or tool with support

Having axial, core-receiving central portion

408204, 408703, B23B 4102, B23B 5104

Patent

active

045868573

ABSTRACT:
A hole cutter having a generally cylindrical body provided with a plurality of first and second cutting teeth around its lower end. Each of the first cutting teeth has a bottom surface defining along its front edge at least two cutting edges which are separated from each other by a shoulder having a certain width and extending substantially circumferentially of the cutter body. Each of the second cutting teeth has a bottom surface provided with a ridgeline extending substantially circumferentially of the body and defining two cutting edges along the front edge of the bottom surface of each second cutting tooth. Each of the cutting edges on each of the second cutting teeth is partly located below one of the cutting edges on each first cutting tooth.

REFERENCES:
patent: 3609056 (1971-09-01), Hougen
patent: 3765789 (1973-10-01), Hougen
patent: 3860354 (1975-01-01), Hougen
patent: 4322187 (1982-03-01), Hougen
patent: 4322188 (1982-03-01), Hougen
patent: 4452554 (1984-06-01), Hougen

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