MK Diamond Premium Wet 1/4 in. Dia. Diamond Core Bit 1 pc.

Drill through porcelain, granite, marble, tile, stone, and masonry Vacuum Braze Technology provides the strongest bond between diamond particles and the drilling surface of core bit. Drilling Time Reduced by 50% compared with traditional metal-bond core bits. No bond to wear away - diamond particles work at peak performance at all times. Reverse spiral thread delivers continuous water feed to the cutting surface areas, extends bit life and improves drilling speed. Core ejector slot clears debris and plugs during repeated drilling operations. Designed to operate on any corded or battery operated hand drill.