Drill bit set KWB 420400 9 pieces for plastic wood metal

The KWB 420400 9-piece drill bit set contains a selection of HSS and TCT masonry drills and wood bits intended for drilling plastic, wood and sheet metal. Packaged in a hanging box for convenient storage and transport, the set is sized for a range of DIY tasks and small repair jobs. Each bit is manufactured to provide reliable performance and durability for both hobbyists and professional users.

Advantages

The set combines high-speed steel (HSS) and tungsten carbide tipped (TCT) drills to cover common materials such as plastic, wood and metal. Bits are supplied in a compact hanging box that keeps them organized and easy to access. The variety of drill types in one kit reduces the need to switch tools between different materials.

Suitable for

Key specifications

How to use

Select the appropriate drill bit for the material and mark the drilling location. Secure the workpiece, fit the chosen bit into the drill chuck and tighten. Start drilling at low speed to create a pilot point, then increase speed as needed while applying steady, moderate pressure. For sheet metal, use cutting oil or lubricant when appropriate; for wood, clear chips regularly to avoid clogging. Always allow the bit to cool between prolonged operations.

Recommendations

Use appropriate personal protective equipment (safety glasses, gloves) and secure the material before drilling. Match bit type to material: use HSS bits for most metals and plastics, and TCT-tipped bits for masonry or harder materials as applicable. Do not apply excessive axial force and avoid overheating the bits to prolong tool life.