3pcs Large HSS Steel Step Cone Drill Titanium Bit Set Hole Cutter 4-12/20 /32mm
New HSS Steel Large Step Cone Drill Titanium Bit Set Hole Cutter. Made from high quality HSS steel. 3Pcs Drill Bits + Storage Pouch. With the Titanium coated to reduce friction and heat. Heat treated and highly polished.