Drill with replaceable inserts

Details Drill with replaceable inserts Drill with replaceable inserts

1978-09-01

1980-07-01

Hinson, Harrison L.

Cutting by use of rotating axially moving tool

Tool or tool with support

Having stepped cutting edges

408713, B23B 5100

Patent

active

042104068

ABSTRACT:
A drill body for drilling solid metal and for finish boring having, at the working end, two or more replaceable, indexable, hard metal inserts dimensioned and spaced radially to cut equal volumes of metal. The inserts are retained in pockets by a headed screw with a through passage for a wrench. The outside insert is also shaped and positioned so the drill body may be shifted radially from the drilling axis and used as a boring bar.

REFERENCES:
patent: 3176377 (1965-04-01), Milewski
patent: 3816018 (1974-06-01), Hlocky
patent: 3963365 (1976-06-01), Shallenberger et al.
patent: 4124328 (1978-11-01), Hopkins
patent: 4149821 (1979-04-01), Faber

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