• Materia: lHigh Speed Steel, Cobalt • Finish Type: Black Oxide • Shank Type: Straight • Brand: Greenlee • Item dimensions L x W x H: 7.5 x 4.3 x 1.5 inches • Tool Flute Type: Spiral • Two cutting edges share the load resulting in faster drill times with less force • New split point tip eliminates walking and penetrates quickly • Cobalt HSS engineered for maximum life on stainless steel • Steam oxide finish runs cooler and extends the life of the bit • Also cuts mild steel, copper, brass, aluminum, fiberglass, plastic, wood and laminates.