Patent ID: 7334970
Filing Date: 2008-02-26
Classification: B23B,B25B,Y10T

Abstract:
1. A fast change bit holder device comprising: a tool bit; a hex holder member having first and second ends and configured to receive rotary force provided by a rotary drive tool, said hex holder member defining at least first and second inner recess portions for removably receiving first end and first mid-portions of said tool bit; an adapter hex member having first and second end portions, said adapter hex member defining an inner recess portion for removably receiving a second end portion and second mid-portions of said tool bit, said first end portion of said adapter hex member having an outer wall configured for removable insertion into said second inner recess portion of said hex holder member, said second end portion of said adapter hex member having threads disposed upon an outer wall thereof; a double collet member having first and second end portions, said first end portion configured to detachably receive said second end and second mid-portions of said tool bit, said double collet member, said second end and second mid-portions of said tool bit, and said first end portion of said adapter hex member being cooperatively configured to transfer rotary motion from said tool bit to said double collet member when said first end portion of said double collet member is forcibly inserted into said second end of said adapter hex member, and said second end portion and said second mid-portion of said tool bit are forcibly inserted into said first end of said adapter hex member; a collet retention cap having a threaded inner wall that corresponds to the threaded outer wall of said second end portion of said adapter hex member such that said collet retention cap is rotationally joined to said second end portion of said adapter hex member; and a drill bit having a securing end that removably inserts into said second end portion of said double collet member, said securing end of said drill bit, said second end portion of said double collet member and an inner portion of said collet retention cap being cooperatively configured to transfer rotary motion from said double collet member to said drill bit when said securing end of said drill bit and said second end portion of said double collet member are forcibly inserted into said inner portion of said collet retention cap, whereby said drill bit is capable of drilling an aperture into a workpiece whereupon said drill bit, said collet retention cap, said double collet member and said adapter hex member are removed from said hex holder member thereby, allowing said tool bit to forcibly insert a fastener into the workpiece via said aperture drilled into the workpiece by said drill bit.