Feature:<br />100% new and high quality.<br />High-speed steel and stainless steel hole saw drill hole saw・ sheet metal reamer.<br />Through a special heat treatment・ sharp edge・ high strength.<br />High precision・ smooth cutting・ especially impact resistance・ wear resistance.<br />Openings for stainless steel・ iron・ aluminum・ and various types of pipes.<br /><br />Specifications:<br />Product name: Hole saw drill bit<br />Size: 16mm/0.62&amp;quot; ・  18.5mm/0.72&amp;quot; ・  20mm/0.78&amp;quot; ・  25mm/0.98&amp;quot; ・  30mm/1.18&amp;quot;<br />Material: HSS high speed steel<br /><br />Package Include:<br />5x Hole saw drill bit