6 Pcs HSS TCT Chainsaw Core Drill Bits Carbide Hole Opener, 22-65mm

Thick, durable, multi-tooth TCT carbide alloy with high hardness, rust-proof, robust, and long-lasting; with a spring to prevent jamming during operation. Category Drilling Diameter Bore 22 mm / 0.86", 30 mm / 1.18", 35 mm / 1.38", 45 mm / 1.77", 50 mm / 1.97", 65 mm / 2.56" Should be installed for use in an electric drill. Commonly used for 3mm stainless steel plates and iron plates less than 10mm thick, as well as for drilling holes in aluminum alloys. Perfect for installing locks and knobs in doors and cabinets, or for drilling larger diameter holes through desks, etc. 6 high-quality carbide bits, 22-65mm, which can cut holes in steel, stainless steel, copper, brass, fiberglass, Formica, iron, aluminum, wood, and various types of pipes in seconds. Features: 1. 100% brand new and high quality. 2. Made of high-quality alloy steel, the blade is extremely sharp and durable. Good drilling performance. 3. When used with our HSS hole saw set, it can be used for drilling thick steel plates and thick-walled metal pipes. 4. When cutting chilled materials, its cutting edge must be filled with coolant. Can be attached to a hand drill or auger. 5. Can be used to cut holes in thick steel plates, cast iron, stainless steel, non-standard angle iron, and other metals. Specifications: 1. Material: Carbide and alloy steel 2. Diameter: Approx. 22-65 mm / 226 in / 0.56 in (22 mm / 0.86 in, 30 mm / 1.18 in, 35 mm / 1.38 in, 45 mm / 1.77 in, 50 mm / 1.97 in, 65 mm / 2.56 in) 3. Overall Length: Approx. 68 mm / 2.68 in 4. Shank diameter: Approx. 9 mm / 0.35 in Package list: 6 x TCT carbide end mills