Feature:1. WIDE APPLICATION: Impact drill bit can be used for operations on concrete, bricks, stones, gypsum, etc.2. 6 FLUTE DESIGN: Impact drill bit contains a 6 flute self centering cemented carbide tip, ensuring quick cutting speed and the longest possible service life. Good cutting capability, good low temperature impact toughness, and good overall mechanical qualities. 6 spiral maximizes drilling chip removal, which keeps the bit cool and increases its useful life.3. CEMENTED CARBIDE MATERIAL: Made of premium cemented carbide material, the drill bit is strong and sturdy, wear and corrosion resistant, possesses great toughness, ensuring a long service life.4. SPECIFICATIONS: Has a for SDS MAXIMUM interface, and 6 flute design, this drill bit is used for 18mm diameter holes. And the threaded part is 255mm, check for better work performance!5. EASY CARRYING: Drill bit can be well stored and carried in your bag for convenient use with the help of the protective case, the thread is not easy to be damaged.Specification:Item Type: 6 Flute Hammer Drill BitMaterial: Cemented Carbide Drill Interface: For SDS MAXIMUMFlute: 6 fluteHole Diameter: Approx. 18mm / 0.71inThread Depth: Approx. 255mm / 10.04inDrill Length: Approx. 400mm / 15.75in.Package List:1 x Drill Bit 1 x Storage BoxNote:Please allow 1 to 2in error due to manual measurement. Thanks for your understanding.