Irwin 39112 Installer Drill Bit 3/4" Screws For use on all types

For use on all types of roofing materials such as: fiberglass/asphalt shingles

For non-plumbing applications

Scrub outdoor plastics

Any angle spray with comfort tip

and sizes in one coat

Irwin 39112 Installer Drill Bit 3/4" Screws For use on all types"IRWIN" INSTALLER DRILL BIT Irwin Power Drill Installer Bit, measures 18 inches long and 3 4 inch diameter, for installing all types of small wire in homes, offices, garages, etc. A small hole in the flute (head) makes it easy to pull wires through hole in wall. Boring action is faster, smoother, cleaner in plaster, metal lath, most every material encountered in wiring installations. Bit features a longer flute section for deeper boring, and a special