Descriptionlength : 6-90mmis_customized : YesUse : Masonry DrillingMaterial : CarbideDIY Supplies : TilingType : Core Drill BitBrand Name : Origin : Mainland ChinaCertification : NONEApplicable equipment : Special for angle grinderAttributes1 : Diamond reaming bitAttributes2 : Sintered drillAttributes3 : Glass Marble Ceramic Granite Special Hole OpenerAttributes4 : Sintered drill hole extractorFeatures:Add water all the time when working .The cutting head is sharp and the opening speed is fast, Sharp and wear-resistant, long service life, save time and moneyHandles below 12mm are straight round handles.The handle above 12mm is a triangular handle.Please allow 1-5mm error for manual measurementThe item colors shown in the photo may appear slightly different on your computer monitor because the monitor is not calibrated the samePlease allow 1-5mm errors due to manual measurementItem color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated samePackage Included:1PCS Diamond Core Drill Bit