Ø 162mm Diamond Drill,1¼ inch UNC,Useful Length 400mm Diamond Drill Bit for Wet Drilling, Core Drill for Concrete - ShopVlot

Accurate size, worry-free adjustment: This diamond drill bit has an accurate size, diameter: 162 mm; usable length: 400 mm; Thread interface: 11⁄4" UNC, compatible with various standard drilling equipment. Whether it's a professional construction team or a DIY enthusiast, they can start drilling quickly Great Wall tooth shape, stable and efficient: The unique tooth design can reduce the shaking of the drill and accurately control the drilling trajectory. The pointed tooth structure can quickly c