1-3/8" MK-190 Premium Wet Diamond Core Bits

Drill through porcelain, granite, marble, tile, stone, and masonryVacuum Braze Technology provides the strongest bond between diamond particles and the drilling surface of core bitDrilling Time Reduced by 50% compared with traditional metal-bond core bitsNo bond to wear away - diamond particles work at peak performance at all timesReverse spiral thread delivers continuous water feed to the cutting surface areas, extends bit life and improves drilling speedCore ejector slot clears debris and plugs during repeated drilling operationsDesigned to operate on any corded or battery operated hand drill

Technical SpecsHollow bore creates a core that guides the drill Diamond grit edge, no bond to wear awaySlotted edge and reverse thread spiral provide more water into the cut for quicker drilling and extended drill lifeHeavy-duty, single piece constructionCore ejection slot allows continuous drilling