Allergen Defense Red Micro Pleated Air Furnace Filter, 14x30x1-In. Collated Siding Nails and up to 25X longer

and up to 25X longer cutting life than standard carbide blades

Forged 1-piece head-handle of tool steel

Drill Size: 3/16"

For use on concrete floors

Bit won't slip in chuck

Allergen Defense Red Micro Pleated Air Furnace Filter, 14x30x1-In. Collated Siding Nails and up to 25X longer14" x 30" x 1" Red Micro Allergen Filtrete Filter, 90% Effective At Capturing Large Allergens Like Mold Spores & Pet Dander, Captures Microscopic Allergens Like Dust, Smoke & Smog, Captures Bacteria & Particles That Can Carry Viruses, Meets The Guidelines Of The American Lung Association Health House Program. MPR Rating 1000, Filter Lasts For 90 Days.