Drill bit GRAPHITE spiral hex shank for wood 16 mm (model 57H256)

Spiral drill bit by GRAPHITE for wood, 16 mm diameter with a hexagonal shank designed to provide reliable engagement in chucks and quick-change drivers. The spiral flute design evacuates chips efficiently to help maintain cutting speed and reduce clogging when drilling through soft and hardwoods. This 16 mm wood bit is intended for creating clean through-holes or pilot holes in timber for carpentry, cabinet making and general DIY tasks.

Advantages

The spiral flute improves chip removal and reduces heat build-up during continuous drilling. A hexagonal shank offers secure grip in quick-change chucks and reduces slipping compared with round shanks. The 16 mm cutting diameter delivers a consistent hole size suitable for dowels, fasteners or pass-throughs. The bit balances rigidity and cutting performance to provide stable, straight drilling in timber.

Suitable for

• Drilling through-holes in softwoods and hardwoods
• Cabinet making and furniture assembly
• Carpentry and joinery tasks
• DIY projects requiring 16 mm holes for dowels or fittings

Key specifications

• Diameter: 16 mm
• Tip type: spiral cutting geometry for wood
• Shank type: hexagonal shank for secure chuck engagement
• Application: designed for drilling timber and wood-based materials
• Flute: spiral flute for efficient chip evacuation

How to use

Install the drill bit securely in a compatible chuck or quick-change holder, ensuring the hex shank seats fully for minimal play. Use appropriate drilling speed for the timber species—lower speeds for hardwoods and higher speeds for softwoods—while applying steady, even pressure. Withdraw the bit periodically on long holes to clear chips and avoid overheating. Support the workpiece properly or clamp it to prevent movement and ensure straight holes.

Usage recommendations

Wear suitable eye protection and hearing protection when drilling. For best results, pre-mark hole centers and pilot spots when precision alignment is required. Use a backing piece when drilling through thin panels to avoid splintering at the exit side.