Irwin Multi-Material Jobber Length Bits 3/8" x 5" Size:3/8" x 5" counter bore attaches securely to

counter bore attaches securely to the flats on the shank with hex screws & adjusts for controlled pilot hole depth

Ergonomic nonslip handles

hole in flute makes it easy to pull wire through walls

reduces user fatigue

#6 wood countersink

Irwin Multi-Material Jobber Length Bits 3/8" x 5" Size:3/8" x 5" counter bore attaches securely toIRWIN 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 centered starts with no walking, fast