Irwin Multi-Material Jobber Length Bits 5/16" X 4-3/4" Category_Safety Wear the retractable blade is ideal

the retractable blade is ideal can tackle all types of professional and home improvement jobs while offering storage space for up to 10 additional blades in its handle

tapered drill

Sharptooth Blade & Composite Handle

Patented locking swivel jaw conforms to uneven work surfaces

Delivers 50 times longer cutting life than standard bi-metal blades

Irwin Multi-Material Jobber Length Bits 5/16" X 4-3/4" Category_Safety Wear the retractable blade is idealMulti Material Jobber Length Bits 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