150mm square shank Carbide Masonry Drills Rotary Hammer Impact Drill Bits Set for Drilling Concrete Brick Tile Specification: Material: 40Cr Shank: SDS PLUS Tip: Flat tip 2 Cutter Drill body hardness: HRC45 to HRC48 Carbide Hardness: HRC89.5-90.5 Diameter: 6mm / 8mm / 10mm / 12 mm / 14mm/16mm Length: 150mm Quantity:1PC Usage: Installed with the round handle interface hammer on concrete, stone, brick body carries out slotting operation, for building, installation of water and electricity, home decoration, modern DIY necessary tools. Packing Included: 1 PC x drill bit Note: 1. Please allow 1-5mm error due to manual measurement. pls make sure you do not mind before you bid 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.