公开(公告)号：US3626513A

公开(公告)日：1971-12-07

申请号：US3626513D

申请日：1970-01-15

Applicant: SYLWERIUSZ PYTLAK

Inventor： PYTLAK SYLWERIUSZ

IPC: B23B45/14 ,  B23B47/28

CPC classification number: B23B47/28 ,  B23B2247/10 ,  B23B2247/16 ,  Y10T408/56245 ,  Y10T408/563 ,  Y10T408/567 ,  Y10T408/8925

Abstract: A guide body having a passage therethrough for accommodating a tool bit is pivotally mounted between a pair of spaced, upstanding plates secured to a base member. A stop member adjustably threaded into the passage controls the depth of penetration of the tool bit. Lateral projections extend from opposite sides of the guide body through arcuate slots in the plates for receiving fasteners to secure the guide body in a selected angular position relative to the base member. In another form, a pair of rods pivotally mounted adjacent the base member extend through lugs projecting laterally outwardly from opposite sides of the guide body and set screws in the lugs engage the rods for securing the guide body in a selected angular orientation.