Drill bit

Details Drill bit Drill bit

1975-08-14

1976-11-02

Wood, Jr., M. H.

Cutlery

F16C 1900

Patent

active

039893154

ABSTRACT:
A drill bit having a roller cutter supported by ball bearings and a ball retainer retained in position both axially and rotationally within the ball loading hole by a plug which is mechanically wedged into secured and sealed position within the outer end of the ball loading hole.

REFERENCES:
patent: 2676790 (1954-04-01), Turner
patent: 3862762 (1975-01-01), Millsap
patent: 3923348 (1975-12-01), Peck

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