HSS Annular Cutter for Steel Hole Cutting ●Ideal for cutting hole in steel metal ●Annular cutters made with super tough M2AL high speed steel (HSS) for durability, wear resistance, high efficiency and superior service life ●CNC-machined high precision annular drill bit set with 3/4 inch Weldon shank (with 2 flats) for secure clamping and edge finish designed for smooth, reamed, burr-free edges of drilled holes. Use a firm steady pressure throughout the cut for best results. ●Compatible with various brands of magnetic drills including Alfra, BDS, Dewalt, Euroboor, Hougen, Ruko. Caution: if you want to use this annular cutter on a drill press, you need an extra annular cutter arbor for the drill bit cutter. Arbor is not included in this pack ●Cuts holes in steel accurately, quickly & safely; Large holes can be drilled up to ten times faster than regular drills bits; Make overlapping holes, slotting holes and edge cuts; HSS Annular Cutter Features MATERIAL Made of HSS M2 Steel with Heat-Treatment for High Hardness and Tensile Strength for Drilling. CUTTING POINT TIP Best design of geometry cutting point for easy fast cutting of steel and metal. SPIRAL FLUTE Spiral flute for quickest chips removal during cutting application WELDON SHANK 3/4 inch Weldon Shank Is Right Fitting with Various of Chucks of Machines Tools. DRILLING MACHINE BORING MACHINE MILLING MACHINE TOOLING MACHINE HSS ANNULAR CUTTER Easy, Quick to Cut Hole in Steel Metal HSS ANNULAR CUTTER SPECIFICATIONS ●Size From 7/16 inch to 3 Inch ● Cutting Point Angle: Conventional Angle ● Flute Type: Spiral Flute ● Shank Type: 3/4 inch Weldon Shank ● Surface Treatment: Bright Finished ● Specification Met: ANSI ● Packaging: Packed in plastic package ● Application: Tap Screws, threads of steel, metal, iron, metalworking projects, reparing, maintenance.. Material HSS M2 Steel