3 Pcs Hex Shank HSS Titanium Coated Step Drill Bits Set ，4-/12/20/32mm<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>.Automatically Deburrs Holes as you Drill. Two-flute Design Gives You Faster， Smoother Cutting.</li><li>Titanium Nitride Coating for Cooler Running， can effectively extend the service life of the drill</li><li>Widely used to cut holes in a variety of material like steel， wood， thin iron， aluminum alloy，PVC</li><li>Material : High speed steel .Long life !</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41FfDMO9yVL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41uVeTgmFQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41JRC4y3j4L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31dYUAHVs0L.jpg" noproxy>