【Vacuum Brazed Diamond Technology】More Heavy Duty and Wear Resistant than electroplated diamond bit,provide very high efficiency,cuts faster,durable and sturdy
【Wax Lubricant inside】While dry drilling,the wax cools the cutting surface as additional cooling to prolong the life of the bit
【Wide Compatibility】Suitable for Wet/Dry drilling clean holes to tile/ceramic,granite,marble,masonry
【Machine】compatible with most angle grinder/driller,Recommend 6000 RPM,Max 11000 RPM