Irwin Tools Unibit #21 13/16-Inch to 1-3/8-Inch Step-Drill Bit, 1/2-Inch Shank (10221) 192551440005 Extra long repositioning time -

Extra long repositioning time - less chance of glued fingers

It isvital that any dirt or contamination picked up by the circulatingoil be removed before it is pumped back into the engine

Reliable magnetic technology provides energy efficient pumping to your pond

Easy to tear

Irwin Tools Unibit #21 13/16-Inch to 1-3/8-Inch Step-Drill Bit, 1/2-Inch Shank (10221) 192551440005 Extra long repositioning time -Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates Single flute cutting edge for greater control through steps Patented single flute cutting edge gives the user a true round hole every time 3 faltted shank prevents slipping in drill chuck Pilot hole required New SpeedPoint tip provides 6X faster initial penetration time than before, and eliminates the need for center punching. Single