Drill with indexable inserts

Details Drill with indexable inserts Drill with indexable inserts

1975-05-07

1976-06-15

Simpson, Othell M.

Cutting by use of rotating axially moving tool

Tool-support with means to permit positioning of the tool...

408199, 408713, B23B 5100

Patent

active

039633659

ABSTRACT:
A drill having inner and outer indexable cutting inserts for forming a hole in a workpiece. The inner insert is positioned at a non-negative radial angle and is set out axially ahead of the outer insert to increase the service life of the inserts. Tungsten carbide wear strips are spaced angularly around the drill body to limit radial movement of the body and to prevent the body from wearing.

REFERENCES:
patent: 3540323 (1970-11-01), Rishel
patent: 3737245 (1973-06-01), Mater
patent: 3740807 (1973-06-01), Getts
patent: 3816018 (1974-06-01), Hlocky

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