Package Include:<br />5x Hole saw drill bit<br /><br />Specifications:<br />Product name: Hole saw drill bit<br />Size: 16mm/0.62" ｣ｬ  18.5mm/0.72" ｣ｬ  20mm/0.78" ｣ｬ  25mm/0.98" ｣ｬ  30mm/1.18"<br />Material: HSS high speed steel<br /><br />Feature:<br />High-speed steel and stainless steel hole saw drill hole saw｣ｬ sheet metal reamer.<br />Through a special heat treatment｣ｬ sharp edge｣ｬ high strength.<br />High precision｣ｬ smooth cutting｣ｬ especially impact resistance｣ｬ wear resistance.<br />Openings for stainless steel｣ｬ iron｣ｬ aluminum｣ｬ and various types of pipes.<br />