Diablo's Steel Demon™ Carbide Teeth Hole Cutters deliver 50X longer cutting life, faster cutting performance and maximum productivity. An optimized carbide tooth geometry provides fast, burr-free holes that require virtually no rework. The depth stop collar maximizes productivity by providing a controlled drilling experience and limiting drilling depth. The combination of a tool-free plug ejection system and spring-loaded plug eject Cobalt pilot bit makes plug removal fast and efficient. Diablo’s hole cutters are compatible with Diablo’s Snap-Lock Plus™ mandrel resulting in quick, easy and effortless cup changes.