Drill Bit KWB 513103 3mm for Chipboard Hardwood Plastic Softwood

The KWB 513103 drill bit set includes three 3 mm wood drill bits designed for chipboard, hardwood, plastic and softwood. Each bit features a chromium-vanadium (CrV) steel body with an adjustable five-flute carbon steel countersink and an integrated depth stop on a cylindrical shank, allowing controlled hole depth and clean entry for a range of woodworking and plastic-drilling tasks.

Advantages

These 3 mm drill bits combine durable CrV steel construction with an adjustable five-flute carbon steel countersink to reduce splintering and produce a smoother finish. The built-in depth stop ensures consistent hole depth, while the cylindrical shank fits standard chucks. Packaged as a set of three, the bits offer immediate replacement options and versatility across chipboard, hardwood, softwood and plastic.

Suitable for

Key specifications

How to use

Install a 3 mm bit in the drill chuck and tighten securely. Adjust the countersink position as needed for the desired chamfer and set the depth stop to the required drilling depth. Use an appropriate drill speed for the material: lower speeds for hardwood and higher speeds for softwood and plastic. Apply steady pressure and back the bit occasionally to clear chips for cleaner holes.

Recommendations

For best results, test on a scrap piece of the same material to set countersink and depth stop positions. Use cutting lubricant when drilling certain plastics and maintain moderate speed to avoid melting. Inspect bits regularly and replace when worn to preserve hole quality.