Granite Cutter Bits Drills 10 PCS glass drill Bit Hole Saw Glass Diamond Coated If You Need Please S In Large Quantities, Please Contact Us, To Negotiate! Cooperation Happy!! Specification / Size: ------- $ Diamond coated GLASS MARBLE HOLE SAW CORE DRILL BIT The diamond coating on these saws give superior performance and life. Excellent results in glass, marble, slate, and tile. Nickel plated. Segmented design works better and lasts longer. Sizes: 6MM ,8MM,10MM,12MM,15MM,16MM,18MM,20MM,22MM,30MM Note: To prolong the life of these bits, use on a low speed with coolant (water/oil) Quantity: ------ (6MM ,8MM,10MM,12MM,15MM,16MM,18MM,20MM,22MM,30MM ) X 1PCS