Drill and countersink assembly and method

Cutting by use of rotating axially moving tool – Processes – Bit detachable

Patent

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Details

408191, 408224, B23B 3500, B23B 5108

Patent

active

054824109

ABSTRACT:
A drill and countersink tool having a drill bit member fixedly attached to a mounting member. The mounting member has exterior threads by which it is ajustably mounted in a countersink member in a manner that the drill bit extends downwardly from the countersink member. A lock nut is threaded onto the mounting member to come into locking engagement with the countersink member. By loosingly the lock nut, the position of the drill bit and the mounting member can be adjusted for different drill lengths.

REFERENCES:
patent: 2429375 (1947-10-01), Smith

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