Milling machine extension

A machine tool extension for joining a machine tool to a spindle on a milling machine comprising:

• an extension collar having a cavity therethrough, a wide spindle head mouth at a first end for joining with said milling machine and a narrower tool mouth at a second end for joining with said machine tool;
• an extension shaft disposed within said extension collar cavity, said extension shaft having a narrow end with a key groove thereon matching a spindle key on said spindle, said extension shaft being provided to transmit power between said spindle and said machine tool;
• and
• an extended draw bar having an elongated body with a wrench head at one end and threading at the distal end thereof, said milling machine spindle having a spindle aperture therethrough, said extension collar having a bar aperture axially therethrough, said extension shaft having an axial bore therethrough, and said machine tool having a threaded draw bar mount aperture therein, said draw bar being inserted through said spindle aperture, through said bar aperture of said collar, and through said extension shaft axial bore into said machine tool draw bar mount aperture to hold said machine tool against said extension collar.