Broca helicoidal KWB 248033, giro a la derecha, 1 ud.

The kwb HSS-Co twist drill bit (kwb 248033) is a single high-speed steel with 5% cobalt alloy twist drill designed for precise drilling in a range of demanding materials including alloyed and unalloyed steel, stainless steel (V2A/V4A), grey cast iron, cast steel, bronze and plastics. Manufactured to DIN 338 standards with a 135° split point (DIN 1412 C), the drill offers self-centring performance and reduced walking. The tool features a right-hand cutting geometry and a parallel shank for universal compatibility with standard chucks and machine holders.

Advantages

The 5% cobalt HSS-Co composition increases wear resistance and heat tolerance compared with standard HSS drills, extending tool life when working with harder steels and stainless materials. The 135° point angle with split point provides reliable self-centring and easier starting without pilot holes. The right-hand cutting type and parallel shank ensure straightforward mounting and use in a wide range of drilling machines and portable drills.

Suitable for

Key specifications

How to use

Mount the parallel shank securely in a compatible chuck or machine holder. Select an appropriate spindle speed and feed rate for the work material, and use cutting fluid when drilling stainless steel or hard alloys to reduce heat and improve tool life. Start drilling with light pressure to allow the split point to self-centre, then increase feed to maintain steady chip formation. Withdraw periodically to clear chips when drilling deep holes.

Recommendations

For best results, use coolant or cutting oil when machining stainless steel and high-alloy steels, and ensure the drill is sharpened to maintain the 135° split point geometry. Match spindle speed to material hardness and drill diameter to avoid overheating and premature wear.