7/16 x 6-1/8-In. Multi-Purpose Drill Bit Keeney the sleeve isolates dissimilar metals

the sleeve isolates dissimilar metals within the waterway

Wide Mouth Bottle Reduces Messes & Spills While Filling

Penetrates deeper to kill more bugs

and is easy to install

With a traditional lens and silver reflector style

7/16 x 6-1/8-In. Multi-Purpose Drill Bit Keeney the sleeve isolates dissimilar metals7 16" x 6 1 8" multi purpose drill bit, cobalt and tungsten carbide tip for maximum hardness and resistance to heat and wear, for rotary or percussion drilling, for use with, masonry, concrete, brick, marble, granite, hardened steel, cast metal, fiberglass, plexiglass, ceramic tile, hard wood, soft wood and glass.