4-Piece HSS Titanium Coated Step Drill Bit Set for Wood, Metal & Hard Materials - High Speed Steel Hole Drilling Tool Kit for DIY Projects, Home Improvement & Professional Use

6 pcs 12-22mm/0.47-0.86" HSS Hole Saw Drill Bit Set HSS Twist Drill Bit Set 6 Pcs Drill Bit Hole Saw Set Stainless High Speed Steel Metal 12-22MM KitMaterial:HSS.3-sided shank.Type: 12/14/17/18.5/20/22MM(0.47"/0.55"/0.66"/0.72"/0.78"/0.86).6pcs Hole saws with 4 wrenchThe hole saw kit through a special heat treatment, sharp edge, high strength.High precision,smooth and steady,shock resistance,abrasive resistance.High speed steel teeth for fast and clean cuts.Suitable for cutting wood, thin sheet metal and thin alloys. The hole saw drill bit taking the form of a short open cylinder with saw-teeth on the open edge, it is used for making relatively large holes in thin material. Hole saw is made from good quality high speed steel for durability and long service life.Cutting of ferrous, nonferrous metal effect is excellent.Can work for 4mm Stainless steel plateThe hole saw kit smooth cuts with perfect cutting result.Provide fast and precise cuts into stainless steel, sheet metal, FRP and wood.Drill bit, spring, wrench are included, no need to buy any extra accessories for the drilling works.cooperate with electric tools, such as bench drill, iron plate, aluminum plate and other metal plates. Material:HSS 3-sided shank Type: 12/14/17/18.5/20/22MM(0.47"/0.55"/0.66"/0.72"/0.78"/0.86) Through a special heat treatment, sharp edge, high strength. Hole saws & Adaptors.Sharp Blade and High Strength. Package Included: 6pcs Hole saws with 4 wrench