· Premium cobalt high speed steel construction for proven capability and durability to drill holes in wood, plastic, aluminum, copper, stainless, sheet metals and many other types of materials.

· Superior gold titanium and black nitride dual coating finish holds up lubricant better for smoother drilling, and is 80% more durable and corrosion resistant than regular black enamel finish.

· 135° Split point design at tip increases cutting speed with self-centering feature and prevents drill walking or wobbling.

· 1/2 Inch reduced shank with tri-flatted end locks onto 3-jaw power tools chuck more securely and eliminates slips.

· Set includes 8 pieces 6” long silver & deming drill bits in a heavy duty aluminum storage case for easy carrying and organization: 9/16”, 5/8”, 11/16”, 3/4”, 13/16”, 7/8”, 15/16”, 1”