Improvements relating to cutting devices to make internal keyways, splines and other shapes in blind bores and through bores

摘要

#$%^&*AU2018101473A420181101.pdf#####1 ABSTRACT 2 3 The documented invention improves the functionality of the device to cut internal 4 keyways in through bores described in Australian Patent 233260 and enables it to 5 cut internal keyways, internal splines, internal hexagans and other internal polygons 6 without alignment errors in through bores and blind bores, by replacing the guide 7 tube and detachable foot piece described in Australian Patent 233260 and with a 8 guide tube (7) that minimises the distance (6) between the lower end of the 9 detachable foot piece (5) to the cutting edge of the cutter that is sliding in the 10 dedicated square tool holding section of the guide tube (7) and has a receiving body 11 (1) with integrated positioning devices (3) and (13), on to which, using several 12 fastening devices (11), an open ended, detachable foot piece (5), having the mating 13 positioning devices (10) and (14), is mounted in a defined position in such a way, 14 that the resulting cutting forces are distributed equally onto the designated area (2) 15 of the receiving body (1) and area (16) of the open ended detachable foot piece (5). 4FIG.1 7 6 13 12 -0 4 124 112 15 6