Irwin Multi-Material Drill Bit Sets 5 Piece Set Grilles & Returns patented variable tooth technology provides

patented variable tooth technology provides faster cuts with less vibration

diameter: 2-3/4" arbor: 5/8"-11 wire size:

Fits all standard quick change chucks and adapters

3 of #2 square recess x 1"

Five flute design reduces vibration for smoother drilling and extended life

Irwin Multi-Material Drill Bit Sets 5 Piece Set Grilles & Returns patented variable tooth technology providesMulti Material Drill Bit Sets Features: IRWIN Multi Material drill bits drill through just about any type of material out there brick, block, tile, metal, wood, plastic and marble theyll even drill through multiple materials at the same time. These versatile bits are designed specifically for rotary drilling, but are tough enough to be used with hammer drills. Carbide tip has a unique diamond ground, four facet design with sharper cutting edges for