5 pc set of Diamond coated drill bits 1/8"-1/2"

4 pc set of Diamond coated drill bits 1/8"-1/2"

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4 Piece Diamond coated rotary drill bit set. Sizes are: 1/16", 1/8", 3/16, and 1/4". Improved fluteless design brings more diamonds in contact with your stock. Last longer and work better than twist bits. These bits will work in any drill. Cordless, power, or a drill press. To prolong the life of these bits use with a little water. Also do not use a lot of pressure. Slowly drill the hole allowing time for the water to cool the glass and the bit. FREE SHIPPING!