Starrett TCT Deep Cut Hole Saws , 20mm

PERFORMANCE: A Carbide Tipped heat and wear-resistant hole saw balances cutting and is more durable, sharp and efficient when cutting hard metal; Carbide technology and optimized tooth geometry make hole cutters cut fast in most applications 3 PLY TOOTH: Each tooth on the saw features three angles ground into its cutting face, delivering a faster cut while making it more robust than a saw with a two-ply grind; The saw will cut easily, remove the swarf efficiently and minimize heat build-up EJECTOR SPRING: The CTD Hole Saw has an ejector spring placed over the pilot drill; the ejector spring expands and forces out the slug of waste material from the saw after your hole has been cut SOLID ONE-PIECE CONSTRUCTION: This tool incorporates the blade and arbor as a single-piece body with an interchangeable pilot drill which results in less vibration and greater precision; No assembly is required, just place it on the drill and use it CUTTING DEPTH: The CTD will power through sheet metal and stainless steel up to 25mm (1″) thickness with fixed or portable drills, mains power or cordless in a fraction of the time taken by a standard hole saw WIDE APPLICATIONS: Specifically designed for cutting stainless steel, cast iron, aluminium, copper, metal inox, fibreglass and non-ferrous materials PERFECT SIZE: Available in various diameters covering the most popular hole saw sizes on the market; Ideal for a wide range of interior works, metalworking, pipework, electrical work, and professional workplace projects