Drill bushing for use in a metal tooling plate

Details Drill bushing for use in a metal tooling plate Drill bushing for use in a metal tooling plate

1980-03-14

1981-05-26

Vlachos, Leonidas

Cutting by use of rotating axially moving tool

Miscellaneous

Drill guide

408115B, B23B 4902

Patent

active

042695503

ABSTRACT:
A press-fit drill bushing for use in metal tooling plates has a circular cylindrical shank, and a toothed crown with an annular groove between the shank and the crown. The ends of the teeth adjacent the groove are disposed at an angle between zero and five degrees positive so that they form chips which are automatically packed into the groove as the bushing is pressed into a tooling plate.

REFERENCES:
patent: 2837942 (1958-06-01), Howell
patent: 3026749 (1962-03-01), Miller et al.
patent: 3349649 (1967-10-01), Mele
patent: 3768918 (1973-10-01), Bethke

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