Portable peck feed drilling system

Cutting by use of rotating axially moving tool – Including means to cause tool to progressively vibrate...

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Details

408130, 408702, B23B 4722

Patent

active

055338429

ABSTRACT:
A peck feed drill incorporates a motor gear quill and a feed control assembly together on a moving race track shaped piston. External construction of the housing permits mounting of an indexing adaptor plug for attachment of drill bushings. Internal construction of the housing provides for passage of air to the various components to which control tool operation. Valves within the air logic circuitry are multi-functional to minimize the number of parts.

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