MOHOO 5PCS 16-30MM HSS Drill Bit Hole Saws Set Stainless High Speed Steel Metal Alloy

?Hole drill bit Feature: ?Hard lengthened alloy stainless steel hole saws set, high hardness,wear resistance, stable quality. Widely used in 3MM stainless steel plate, within 10MM iron plate. Aluminum plate and other metal sheet hole operation ?hole saws are sharp, reliable, cost-effective, row cutting is very smooth, not prone to chipping phenomenon. They are with excellent performance, sharp knife edge, wear and other characteristics. Package Included: ?5x Hole Saws Drill Bit/hole drill bit ?Hole drill bit Uses: ?Hole saws work with the ordinary electric drill, uses in stainless steel, iron, steel, castings, aluminum and other metal plate drilling. ?Hole drill bit Material: HSS high speed steel ?Hole drill bit Size: 16mm/0.62" , 18.5mm/0.72" , 20mm/0.78" , 25mm/0.98" , 30mm/1.18" ?High-speed steel and stainless steel hole saws drill hole saw, sheet metal reamer. ?Through a special heat treatment, sharp edge, high strength. ?High precision, smooth cutting, especially impact resistance, wear resistance. ?Openings for stainless steel, iron, aluminum, and various types of pipes.