Check the listing for details. 1-3/8” Laser Welded Granite Marble Diamond Core Drill Bit hand drill. Condition: New. Listed at 49.00 USD. 1-3/8” Laser Welded Stone Diamond Core Drill BitDesigned for drilling on granite, marble, and all other natural stoneBrand new conditionPremium turbo style segment designQty: 1pcs10mm segment heightBit length: 4" with 3" depth of cutSpecial bond matrix provides aggressive drilling speed and long life5/8"-11 arbor for handheld drills and angle grindersWorks great with center water feed tools - use water will greatly prolong the segment lifeUse wet or dry1 3/8" PROFESSIONAL LASER WELDED TURBO GROOVED RIM. CORE BIT IS MANUFACTURED FOR DRILLING THROUGH GRANITE, PORCELAIN ENGINEERED & NATURAL STONE SURFACES. DIAMOND PARTICLES ON BITS ARE ENGINEERED WITH A SPECIAL BOND FOR ENHANCED PERFORMANCE AND DURABILITY. GROOVED SEGMENT STYLE ENSURES AN IMMEDIATE HOLD AND THEREBY A SMOOTH AND CONTROLLED START. FOR USE ON ANGLE GRINDERS 5/8" 11 THREADDesigned for drilling the faucet mounting holes in stone countertops, plumbing lines in showers and vanities 10mm segment height for extended drilling life 5/8”-11 threaded arbor fits most angle grinders hand drills Works great with center water feed tools Use WET only Barrel color may vary