Original Publication Date: 1988-Jan-01
Included in the Prior Art Database: 2005-Feb-15
A Z-axis set screw is used to secure a drill in the spindle of a drilling machine. To adjust the length of the drill the set screw must first be loosened and then tightened after the drill, length is selected. To turn the set screw requires that the spindle must be secured from turning while the drill is adjusted. The spindle is secured in the following manner.