UN drill bit set, model L-270850100 — 4 pieces: 6 mm, 12 mm, 20 mm, 25 mm

UN drill bit set model L-270850100 contains four commonly used diameters: 6 mm, 12 mm, 20 mm and 25 mm. The set is supplied by UN and is intended to provide a compact selection of drill bits suitable for a variety of on-site and workshop tasks. These bits are designed to create clean, accurately sized holes where the listed diameters are required for installation, fastening and repair work.

Advantages

The set offers a small, practical range of diameters that covers frequent hole sizes for carpentry, plumbing and general maintenance. Having four different sizes in one set reduces the need to carry individual bits and simplifies selection on the job. The bits are matched to their nominal diameters to support consistent hole dimensions and easier alignment of fasteners and fittings.

Suitable for

• Drilling pilot and through-holes in wood and engineered timber
• Creating holes for pipes, cable passages and wall plugs during installations
• General repair and maintenance tasks that require standard hole sizes
• Workshop and on-site tasks where a small, versatile selection of bits is needed

Key specifications

• Set contents: four drill bits with diameters 6 mm, 12 mm, 20 mm and 25 mm
• Intended application: drilling holes with specified diameters for installation and repair
• Typical materials: suitable for wood and common construction materials (see tool compatibility)
• Packaging: compact set intended for practical transport and on-site use

How to use

Select the drill bit with the required diameter and secure it in a compatible drill chuck. Use appropriate drill speed and feed for the material being worked — lower speeds for larger diameters and harder materials, higher speeds for small diameters in softer materials. Support the workpiece as needed to prevent splintering or movement. When drilling through walls or near services, check for hidden pipes and cables before proceeding.

Usage recommendations

For best results, match the drill bit diameter to the fastener or fitting being installed and inspect bits for wear before use. Use appropriate personal protective equipment and observe safe drilling practices. Store the bits in a dry place to maintain cutting performance and avoid corrosion.