RUKO Twist Drill Bit for Metal, Ground | 11.8 mm

High performance twist drill bit made of HSS (High Speed Steel). Fully ground drill bit provides higher concentricity. Diameter 3.0mm and higher - split point Use: steel, low and high-alloy cast iron (tenacity class up to 900N/mm2), grey, tempered, malleable, and ductile iron, wrought iron, alpaca silver, graphite, short-chip aluminum alloys, brass, and bronze.