RUKO HSS type N twist drill bit Ø 4 mm, DIN 338, high precision and durability.

The Ruko-2144040-DIN 338 Type N HSS Twist Drill (Ø 4 mm) is a high-precision tool designed to deliver exceptional performance in a wide variety of materials. Its high-speed steel (HSS) construction ensures superior durability and wear resistance, making it an ideal choice for demanding applications. The drill features high concentricity and rotational accuracy, enabling clean and precise drilling. Its design includes a ground tapered point with a split point, conforming to DIN 1412 C, which facilitates penetration into the material and reduces initial slippage.

With a cutting angle of 118 degrees and a spiral angle of 20-30 degrees, this drill is optimized for efficient and effective cutting. The bright surface not only enhances the aesthetics but also contributes to reduced friction during use.

• High-performance drill bit for all types of drills.
• High concentricity and rotational accuracy.
• Conical point with split point according to DIN 1412 C.
• Cutting angle: 118 degrees.
• Spiral angle: 20-30 degrees.
• Diameter tolerance: h8.
• Bright surface.
• Right-hand cutting.
• Applications in steel, cast iron, and alloys.
• Material strength up to 900 N/mm².