ITEM NAME:6pcs Hex Shank Drill Bit Glass Cross Spear Head Tungsten Carbide Tip 4-12mm YM Descriptio n Parameters: 1. Material: 45#steel alloy head, finish treatment: titanium; 2. Specifications: 1/4 hex shank, the drilling diameter: about 4,5,6,8,10,12 mm/ 0.16,0.20,0.24,0.31,0.39, 0.47 in 3. Applicable scope: for boring holes in the glass, ceramic and ceramic tiles. We offer you what you need! 6Pcs Ceramic Tile Glass Drill Bits 1/4" Hex Shank Set for Chucks Bit Holder 4-12.6Pcs Ceramic Tile Glass Drill Bits 1/4" Hex Shank Set for Chucks Bit Holder 4-12. We'd like to settle any problem in a friendly manner. Applicable scope: for boring holes in the glass, ceramic and ceramic tiles.
