13Pcs 3/8" Twist Drill Bits, M35 Cobalt High-Speed Steel Drill Bit For Metal

Description: Our Cobalt Twist Drill Bit features a 135° external point angle, designed for quick and clean drilling. Split point tip and twist design increases cutting speed while easily self-centering to prevent movement. The twisted design of the drill bit quickly removes drilled chips, then leaving a smooth hole. Made from M35 cobalt material, this twist drill bit ensures high hardness and durability, increased heat resistance and wear resistance. The cobalt material gives the bit great wear resistance and overall toughness, making it great for long-term use in a variety of drilling applications. The external point angle design of this cobalt twist drill bit allows for fast and efficient drilling, with effective chip removal to prevent clogging. This results in clean, precise holes with minimal burrs or rough edges, great for a range of materials including stainless steel, steel, sheet metal, cast iron, titanium, and other alloys, as well as plastic, aluminum alloy, wood and other softer metals, is well-suited for both DIY and professional use. Notice: Please keep cool and gentle using, the working life of the twist drill bits can be largely prolonged by proper usage. When using a hand-held electric drill, pay attention to speed adjustment. The larger the drilling diameter, the slower the drilling speed should be chosen. When the chip evacuation has a problem, go back and remove the chips in time. Specification:Material: M35 Cobalt HSS(High Speed Steel)Flute Type: SpiralDrill Bit Diameter: 3/8"Flute Length: 2-3/4"Shank Diameter: 3/8"Total Length: 4"Package Content:13 x Lengthened Drill Bits