High Speed Steel Fractional Hole Enlarging, 13/16 in to 1-3/8 in, 10 Steps ORS NASCO carbon steel and stainless steel|Use

High Speed Steel Fractional Hole Enlarging, 13 16 in to 1 3 8 in, 10 Steps ORS NASCO carbon steel and stainless steel Use carbon steel and stainless steel Use with materials 1 8 in and thicker Electronic beam weld for stronger 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 Single flute cutting edge for greater control through steps 3 flatted shank prevents slipping in drill chuck Also available with titanium nitride coating for longer life Patented single flute cutting edge gives the user a true round hole every time Ideal for drilling holes into thin materials such as stainless steel plastic and laminates