【Wide Application】 Diamond core bits are worked great for dry drilling holes through porcelain tile, ceramics, bathroom tile,marble,glass,granite,stone,masonry, brick with ease
【Vacuum Brazed Diamond Technology】More Heavy Duty and Wear Resistant than electroplated diamond bit,provide very high efficiency,cuts faster,durable and sturdy
【Fit Most Tools】Dry Diamond Core Drill Bit can be used on most angle grinders (5/8"-11 thread) directly,Recommend 3000 RPM,Max 6000 RPM or High Speed powered drills with the 3/8" Hex Shank Adapter Adaptor (included)