DURABLE: This 22mm x 400mm masonry drill bit is zinc plated and heat treated with a fluted shank VERSATILE: It fits most popular makes of electric and cordless drills SIZE CAPACITY: 22 mm range ideal for household and trade applications ERGONOMIC GRIP: Comfortable to hold for better control PLUMBING APPLICATIONS: Essential for household and trade pipework, Weight: 0.9259415004 pounds, Manufacturer: DK Tools