OriGlam 22mm HSS Drill Bit, Hole Saw Cutter, Kit, Bit Set Cutter Tool, High Speed Steel Cutting Metal Alloy Kit For Wood

√ Made From HSS - The gears is made from HSS and the rigidity varies from the hole saw has a twist drill bit inside, which is undetachable. √ Long Life - Anti-cutting with lower consumption make the product a long service life. √ Fast Cutting - Suitable for hand held electric drill, stand motor-driven drilling machine and mobile ribbon type magnetism drilling machine. √ Multi-Purpose - Perfect for installing knobs, locks and cutting holes in wood, soft steel, etc. √ 100% Money Back - If these tools don't meet your expectations in any way, simply call amazon and ask for a refund.