4341 High Speed Steel Straight Shank Twist Rolled Black Drill Bits Suitable for Drilling Iron Aluminum Plastic Wood and Metal

Our factory supplies 4341 high-speed steel straight shank twist rolled black drill bits, suitable for drilling operations on iron, aluminum, plastic, wood, and various metal materials. Made from 4341 high-speed steel, the drill bits feature good hardness and toughness, adapting to the cutting requirements of different materials—maintaining stable precision when drilling metal and achieving efficient chip evacuation when processing non-metallic materials. Formed via the rolling process, they ensure dimensional accuracy and structural uniformity. The black surface treatment enhances lubricity and wear resistance, reducing friction and heat generation during cutting. The straight shank design is compatible with universal drill chucks, ensuring secure clamping and适配ing various equipment such as electric drills and bench drills. Relying on standardized production lines, our factory provides bulk supply. With reliable performance, the products are widely applicable to scenarios like mechanical processing, furniture manufacturing, and daily necessities production, offering practical tool options for multi-material drilling needs.