Vari Bit® Step Drill Bit, #3, 1 4 in to 3 4 in Cutting Dia, 9 Steps ORS NASCO May be pressurized immediately following May be pressurized immediately following application Non setting multi purpose compound which contains PTFE Fine adjustment for optimum adaptation to different size workpieces and a comfortable gripping position Self locking on pipes and nuts: no slipping off the workpiece and low hand force required Gripping surfaces with special hardened teeth Features high speed steel construction and steam oxide coating Patented design with two cutting flutes allows for clean burr free holes Split point design for faster penetration and less walking