5/6pcs Woodworking Hex Shank Tile Drill Bit Concrete Ceramic Hole Openers, 3+4+5+6+7mm, 501 Original

5/6pcs Woodworking Hex Shank Tile Drill Bit Set Concrete Glass Ceramic Drilling Head Carpenter Stone Brick Hole Opener Tool AccessoryFeature:Hard alloy steel is preferred, which has higher hardness and more wear resistance than ordinary drill bits.Four-blade design, small incision resistance, precise and effortless punching.After centerless grinding treatment, the surface of the drill body is smoother in drilling and chip removal.The drill shank is cut into solid hexagon, which makes the electric drill hold more tightly and the drilling is not easy to slip.Specification:Type of handle: hexagonal handle.Cooling type: external cooling.Top angle of outer edge: 45°Material: cemented carbideColor: GoldType working length drill bit total length3mm/0.12in 33mm/1.3in 70mm/2.8in4mm/0.16in 35mm/1.4in 70mm/2.8in5mm/0.2in 40mm/1.6in 76mm/3in6mm/0.24in 42mm/1.65in 77mm/3in7mm/0.28in 48mm/1.9in 80mm/3.1in8mm/0.31in 48mm/1.9in 80mm/3.1in10mm/0.39in 55mm/2.2in 83mm/3.3in12mm/0.47in 55mm/2.2in 83mm/3.3inNote:Lithium drills below 24V are not recommended for use, and cannot be drilled because of insufficient strength.When the wall is punched, the steel bar must be changed, otherwise the cutting edge will collapse.Vitrified bricks, all-ceramic tiles and granite need to be cooled by adding water.Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-2cm measuring deviation due to manual measurement.Package Content:5/6 x Hex Drill Bit