Drill bit set Irwin 3 pcs for wood, sizes 6×16 mm, 6×20 mm, 6×25 mm

Irwin drill bit set for wood contains three 6 mm diameter bits with cutting lengths of 16 mm, 20 mm and 25 mm. These bits are intended for drilling clean, accurate holes in solid wood and common wood-based materials. The set fits handheld drills and drill presses and is designed to deliver consistent 6 mm holes at different depths for assembly, dowelling and other woodworking joints.

Advantages

The set includes three different cutting lengths that allow choosing the appropriate drilling depth without changing the diameter, reducing the need for depth stops or repeated adjustments. Irwin manufacturing ensures uniform diameter and straightness for precise fit of dowels and fasteners. The bits are optimized for wood cutting geometry to produce clean edges and minimise splintering on the exit side.

Suitable for

• Carpentry and joinery work requiring 6 mm holes
• Furniture assembly and dowel installation
• General woodworking tasks on solid wood, plywood and MDF
• Handheld drilling and drill-press operations

Key specifications

• Diameter: 6 mm
• Cutting lengths: 16 mm, 20 mm, 25 mm
• Material: high-carbon or tool steel suitable for wood (manufacturer standard)
• Shaft type: straight shank compatible with standard chucks
• Intended use: drilling in wood and wood-based panels

How to use

Secure the chosen 6 mm drill bit in the drill chuck and tighten firmly. Mark the drilling point and, if necessary, use a centre punch or pilot mark to prevent wandering. For best results, clamp the workpiece and drill at moderate speed appropriate to the wood type. Apply steady, even pressure and withdraw the bit periodically when drilling deeper holes to clear chips and reduce heat build-up. Use the different cutting lengths to achieve the required hole depth without over-drilling.

Usage recommendations

For cleaner exit holes, support the underside of thin panels with a sacrificial backing board. When installing dowels or screws, check fit with sample pieces before final assembly and avoid excessive side load on the bit to maintain straight holes.