RUKO LOS-HSSCo-24mm spiraalboor 24 mm HSS-Co DIN 338

The RUKO LOS-HSSCo-24mm is a twist drill bit engineered for demanding metal drilling applications, featuring a 24.0 mm diameter and a high-speed steel cobalt (HSS-Co 5%) construction that delivers exceptional heat resistance and wear protection. Its 135° split point ensures self-centering and reduces walking, enabling precise hole starts without a center punch.

Advantages

Fully ground from HSS-Co 5%, this drill bit maintains hardness at elevated temperatures, making it ideal for continuous use in tough materials. The bright, uncoated surface reduces chip adhesion, while the cylindrical shank fits standard drill chucks. The DIN 338 standard guarantees consistent geometry and performance.

Suitable for

• Stainless steel
• Acid-resistant steel
• High-alloy steel
• Cast iron
• Bronze
• Hard plastics

Key specifications

• Drill bit type: Twist drill bit
• Material: High-speed steel cobalt (HSS-Co 5%)
• Drilling diameter: 24.0 mm
• Overall length: 153 mm
• Working length (flute length): 101 mm
• Shank type: Cylindrical
• Point angle: 135°
• Point type: Split point (self-centering)
• Cutting direction: Right-hand cutting
• Standard: DIN 338
• Tolerance: h8
• Helix angle: Standard (Type N)
• Surface finish: Bright / Uncoated
• Manufacturing process: Fully ground
• Packaging quantity: 1 piece

Recommendations

Use with a suitable cutting fluid when drilling stainless or acid-resistant steels to extend tool life and improve hole quality. Ensure the drill is securely clamped and the workpiece is stable to handle the high torque of large-diameter drilling.