Specifications:The drill bit is made of premium alloy material, which is with high hardness, rustproof, solid and durable to use.It features hexagonal shank allows you to hold the drill bit firmly and stably in the electric drill.This product can be installed in ordinary hand drill, charging drill, bench drill, impact flat drill and so on.It is suitable for using in glass, ceramic tiles, wood, ceramic, stone, concrete, brick, etc. Item Name: Drill BitMaterial: AlloyHandle Shank: Hexagonal ShankFeatures: Sturdy, Wear-resistant, Woodworking Tool, Positioning AccuracyDrill Bit Diameter: 5mm/0.19", 6mm/0.23", 8mm/0.31", 10mm/0.39", 12mm/0.47" (Approx.) Notes:Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement. Package Includes:1 x Drill Bit