Specification: Material: YG6 tungsten steel Surface treatment: titanium plating Bit type: plate and glass for attachment Head type: cross unique Drill bit diameter: approx. 6mm Shank diameter: approx. 4.5mm Total length: approx. 72mm Feature: Industrial Grade Tin Coated Carbide With 4 Cutting Edges. The resistance to the incision is small, increases the opening speed. Strong strength and wear resistance. High strength and hardness. to use. It can be used with ordinary drill hammer. It is used to drill glass, ceramics, wood, metal, plastic, tile, cement, etc. Package Included: 5pcs x glass for attachmentNote: It needs to be add coll-ant when used. When drilling a hole, your force should be slow, especially at the beginning of drilling and when drilling glass. Please allow 1-5mm errors due to manual measurement. The item color displayed in photos may be showing slightly different on your computer monitor because monitors are not calibrated same. Payment1) we accept Alipay, West Union, TT. All major credit cards are accepted through the payment processor's secure escrow.2) payment must be made within 3 days of placing the order.3) if you are unable to check out immediately after the listing ends, please wait a few minutes and try again, payments must be completed within 3 days. Shipping1.