Drill bit set KWB 421944 19 pcs 1.0 - 10 mm Twist drill bits

The KWB 421944 drill bit set contains 19 HSS twist drill bits with diameters ranging from 1.0 to 10 mm. Made according to DIN 338 and roll-forged for consistent geometry, the bits are supplied in a sturdy metal case for organized storage and transport. This set is intended for general-purpose drilling in materials compatible with high-speed steel twist drills.

Advantages

The roll-forged HSS construction provides durability and accurate cutting geometry as specified by DIN 338. A wide diameter range from 1.0 to 10 mm covers many common drilling tasks, while the metal storage case protects the bits and keeps them arranged for quick selection. The set is suitable for repeated use in workshop and home environments.

Suitable for

Key specifications

How to use

Select the appropriate drill bit for the required hole diameter, secure the bit in the drill chuck, and clamp the workpiece as needed. Use suitable cutting speed and feed for HSS drills and the material being drilled; apply cutting fluid when machining metals to extend bit life and improve chip removal. Start drilling at low speed to establish the hole, then continue with the recommended speed for the material until the hole is complete.

Recommendations

For best results, use appropriate safety equipment (eye protection, gloves) and follow manufacturer guidance for drill speeds and cooling. Store the bits in the metal case to prevent damage and to maintain organization.