Irwin 4935076 Hammer Drill Bit Set, 5 Piece Polyethylene Tubing 20 Amp AC outlets with

20 Amp AC outlets with automatic voltage regulation provides clean power

0-550 RPM provides increased torque for drilling and mud mixing

Filtering efficiency for sub-micron size particles

Teeth per inch: 22

Irwin 4935076 Hammer Drill Bit Set, 5 Piece Polyethylene Tubing 20 Amp AC outlets withHighlights: 5 Piece Carbide Tip Bits feature aggressive diamond ground tips for fast drilling, optimal flute design for fast dust removal A shortened carbide tip that allows dust to move into the flute quickly reducing build up Includes (1) one each: 5 32"x6", 3 16"x6", 1 4"x6", 3 8"x6", and 1 2"x6" Patented Carbide Tip Controlled Self Centering When Starting Holes; Aggressive Angles For Faster Drilling Patented Flute Design For Rapid Dust Removal,