Master Mechanic 120642 Silver & Deming Black Oxide Drill Bit, 7/8" x 6-1/2" FREEOVER35 Reduced cutting force: teeth are

Reduced cutting force: teeth are face ground/sharpened

Twin quartz

Solid brass couplings

Recommended for forced air heaters

Contractor/Homeowner use

Master Mechanic 120642 Silver & Deming Black Oxide Drill Bit, 7/8" x 6-1/2" FREEOVER35 Reduced cutting force: teeth areMade of high speed steel. Black oxide surface finish improves chip flow and increases abrasion resistance. Recommended for drilling wood, plastic and soft metals. Used in machine shops using screw machines or where the maximum chuck capacity is 1 2". Carded. Master Mechanic Size: 7 8" x 6 1 2" Silver and deming High speed steel Black oxide titanium drill bit Jobber length 1 2" reduced shank 3 1 8" flute length Black oxide surface finish improves chip