Tools For Men Tool 4-22MM HSS 4241 Hex Titanium Cone Drill Bit Hole Cutter For Sheet Metal Yellow

4-22MM HSS 4241 Hex Titanium Cone Drill Bit Hole Cutter For Sheet Metal Description: ex Titanium Step Cone Drill Bit Hole Cutter 4-22MM HSS Size: 4-22 mm（6 8 10 12 14 16 18 20 22）mm Shank:6mm(dia) 25mm(L) Total:75mm(L) Material:High speed steel Color:As shown The ladder of its unique structure a bit can open a variety of specifications of aperture. Do not need to use center punch compared with the ordinary twist drill is not easy to be broken. Deburring chamfering eltic hole enlargement twist drill the function of them was unable but it is possible. The use of tools:drill bench drill.Work while water cooling can effectively extend the service life of drill bit recommend drilling rate of 250-250 RPM. Package include 1x Hex Titanium Step Drill: