Drill Bit AWTools AW40320 — AW40320, weight 35 g

AWTools AW40320 drill bit is a compact, dual-function accessory designed for pilot hole drilling and countersinking in a single operation. Made of high-speed HSS steel with a blackened finish, this lightweight 35 g bit is intended as a replacement or spare for compatible quick-change chucks. Its geometry and material make it suitable for precision work and general-purpose drilling in a range of wood-based materials.

Advantages

The HSS steel construction provides durability and heat resistance during repeated use, while the blackened surface reduces glare and offers basic corrosion protection. The combined pilot-drill-and-countersink design saves time by creating a hole ready for screw insertion without changing tools. Its compact form and low weight improve handling and reduce operator fatigue in repetitive assembly tasks. Inclusion of a small hex wrench allows easy adjustment of the countersink depth for different screw heads and material thicknesses.

Suitable for

• Furniture assembly and cabinetmaking where pilot holes and countersinks are required
• Renovation and general carpentry work in soft and hard woods
• Drilling in chipboard and MDF panels for fitment of wood screws
• Production and assembly lines that use 1/4" quick-change chucks

Key specifications

• Material: high-speed HSS steel with blackened finish
• Function: combined pilot drill and countersink in one tool
• Compatibility: fits 1/4" quick-change chucks
• Weight: approximately 35 g
• Included accessory: hex wrench for countersink depth adjustment
• Recommended materials: hard and soft wood, chipboard, MDF

How to use

Install the bit into a compatible 1/4" quick-change chuck and secure it according to the tool manufacturer's instructions. Adjust the countersink depth with the supplied hex wrench to match the screw head profile and material thickness. Position the bit perpendicular to the work surface and drill at a controlled speed appropriate for the material—lower speeds for hard wood and higher speeds for softer materials. Apply steady pressure; the bit will create a pilot hole and countersink in a single pass, after which a screw can be driven into the prepared hole.

Usage recommendations

Use cutting lubricant sparingly only when drilling very hard or resinous woods; avoid excessive side pressure to prevent premature wear. Check the countersink depth on a scrap piece before working on final parts, and periodically inspect the bit for wear or dulling to maintain consistent hole quality.