Patent ID: 6913427
Filing Date: 2005-07-05
Classification: B23B,Y10T

Abstract:
1. An adjustment device adapted for use between a drill motor and a work piece, said adjustment device comprising: a first portion having a leading end and an internal surface, the internal surface including an internal thread having a first pitch; and a second portion having an outer surface and an inner surface, the outer surface including an external thread having a pitch substantially the same as the first pitch and the inner surface including an internal thread having a second pitch, wherein the first threaded pitch is different from the second threaded pitch; the outer surface of the second portion situated to threadedly engage the internal threaded leading end of the first portion, and the threaded inner surface of the second portion situated to threadedly engage a mating thread carried by either the drill motor or the work place, such that the overall length of the adjustment device may be adjusted by adjusting the first and second portion relative to one another.