Drill bit Art-Pol spiral hex shank for wood 20 mm, model 54370

Spiral wood drill bit Art-Pol model 54370 with a 20 mm cutting diameter and hexagonal shank is designed for drilling clean, accurate holes in soft and hardwoods, plywood and composite boards. The spiral flute geometry provides efficient chip evacuation and reduced clogging during continuous use. The hex shank ensures secure grip in chucks and compatibility with quick-change holders, making the bit suitable for use with hand drills and drill drivers in woodworking and general repair tasks.

Advantages

This Art-Pol spiral drill bit combines a 20 mm cutting diameter with a spiral flute that clears chips quickly, enabling faster drilling and less heat buildup. The hex shank delivers stable engagement with the drill chuck or quick-change adapter, minimising slippage under load. The bit’s geometry is optimised for clean hole edges in a variety of wood-based materials and for reliable performance in repeated drilling operations.

Suitable for

• Drilling holes in softwoods and hardwoods
• Working with plywood and laminated boards
• Installing dowels, plugs and large fasteners
• General carpentry, joinery and repair tasks
• Use with hand drills and cordless drill drivers

Key specifications

• Cutting diameter: 20 mm
• Shank type: hexagonal shank for secure grip
• Tip/geometry: spiral flute for efficient chip removal
• Material suitability: softwood, hardwood, plywood, composite boards
• Intended use: manual and powered drilling (hand drills, drill drivers)

How to use

Mount the hex shank of the drill bit firmly in the drill chuck or quick-change holder and tighten according to the drill manufacturer’s instructions. Select an appropriate rotation speed for the material: lower speeds for hardwoods and higher speeds for softwoods and plywood to avoid burning or tear-out. Apply steady forward pressure without forcing the bit; allow the spiral flute to evacuate chips. Withdraw the bit periodically on deep holes to clear accumulated chips and reduce heat. After use, clean off debris and store the bit in a dry, protected place.

Usage recommendations

For best results, start with a pilot mark to position the drill, clamp thin or delicate panels to prevent movement, and use consistent speed and pressure. When drilling laminated or veneered surfaces, consider backing the workpiece with sacrificial material to reduce edge splintering.