This is an aluminum handle that a counter sink bit will fit into; a clutch mechanism allows the bit to only turn in one direction. The normal "speed de-bur" handle cuts a very irregular pattern and will not countersink, or true up a countersink. This tool will do both countersinking and de-burring.Use any countersink with a 1/4" shaft.
Tools - Sheet Metal Tools - Deburring Tools - Deburring Tools
