Description: Twist Drill Bits Easy to install: ordinary impact drill, pistol drill can be installed and used, easy to carry and decorate. Hard carbide tip easily penetrates a variety of materials(for ceramic, tile, marble, mirror, glass). No broken edges, no tremors, small incision resistance, fast hole speed, easy chip removal. Perfect for wood, also for plastic, walnut, amber, beads, beeswax, olive nut, small model kit etc. it can clamp steel line and twist it into the shape you need, and also useful for electronic assembling, tool-making, model making and DIY.Specifications:Material:carbideClass:center drillSize: 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm and 22 mm, 25 mm1 or 4andquot =6.35mm handle diameterNote:The color will be sent randomlyPlease allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Included:1xWoodworking bit Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.