Poranterä KWB 513104 4 mm lastulevylle, kovapuulle, muoville, pehmeälle puulle

The KWB 513104 4mm drill bit is a compact woodworking bit made of chrome-vanadium (CrV) steel, supplied in a blister pack with three pieces. It features an adjustable 5-flute carbon steel countersink and an integrated depth stop on a cylindrical shank, and is intended for drilling in chipboard, hardwood, plastic and softwood.

Advantages

The combination of a CrV drilling body and an adjustable 5-flute carbon steel countersink offers durable cutting performance and improved finish at the hole edge. The integrated depth stop enables consistent drilling depth, while the cylindrical shank fits standard chucks. The three-piece blister pack provides immediate spare bits for continued work.

Suitable for

Key specifications

How to use

Install the 4mm cylindrical shank into a compatible drill chuck and tighten securely. Adjust the countersink to the desired diameter and set the depth stop for the required drilling depth. Drill at a steady speed appropriate for the workpiece material—lower speeds for hardwood and higher speeds for plastic and softwood—applying moderate pressure until the depth stop contacts the surface.

Recommendations

For best results, use appropriate drill speeds for each material, clamp thin or flexible workpieces, and clear chips regularly. Inspect bits for wear and replace when cutting edges become dull to maintain clean holes and prevent material damage.