Bit adaptor

Details Bit adaptor Bit adaptor

1997-10-17

2000-03-07

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Tool-support

With tool-retaining means

279145, 279144, 7158, B23B 3110

Patent

active

060331623

ABSTRACT:
A bit adaptor has a guide sleeve having a first end and a second end. The first end has an axially extending polygonal receiving member for receiving a screwdriver bit. The second end has an axially extending blind bore for receiving a drill bit. The blind bore has a bottom portion for torsionally engaging a tip of the drill bit. The bottom portion has a support structure for supporting a cutting plate of a tip of the drill bit, wherein the support structure provides at least a linear support for the cutting plate.

REFERENCES:
patent: 2341947 (1944-02-01), Roberts
patent: 3973784 (1976-08-01), Smith
patent: 5586847 (1996-12-01), Mattern et al.
patent: 5722805 (1998-03-01), Giffin

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