ITEM NAME:3pcs/set Metric Woodworking Twist Drill Bit Step Drills for Drilling Holes #gib Store Home Promotion Hot Item Add to Fav.3pcs HSS step cone bits titanium coated bit sets 4-12/20/32mm with bag. 3 X Step Drills. This is a new HSS large-size conical bit cutting machine made of high quality HSS steel,and with titanium coating to reduce friction and heat.
