Drill bit GRAPHITE spiral hex shank for wood 18 mm model 57H364

Spiral wood drill bit from GRAPHITE model 57H364 with an 18 mm cutting diameter and a hexagonal shank. Designed specifically for drilling in timber and common wooden materials, the spiral flute geometry facilitates efficient chip removal while the hex shank provides a secure fit in chucks and rapid-change adapters. The bit is intended for use with hand drills and drill drivers in carpentry, joinery and general woodworking operations where clean, consistent holes are required.

Advantages

The spiral flute removes chips effectively, reducing heat buildup and minimizing clogging during drilling. The 18 mm cutting diameter delivers a precise hole size suitable for dowels, through-holes and fastening points in wooden assemblies. The hex shank ensures positive engagement with quick-change chucks and driver holders, improving torque transfer and reducing slippage. The bit’s geometry balances cutting efficiency with durability for repeated use in typical woodworking conditions.

Suitable for

• Drilling holes in solid timber, softwood and common hardwoods
• Carpentry and joinery tasks such as fitting dowels and bolts
• Installations requiring clean through-holes for fasteners and service runs
• Use with hand-held cordless or corded drills and quick-change systems

Key specifications

• Cutting diameter: 18 mm
• Shank type: hexagonal shank for secure grip and quick-change
• Flute design: spiral flute for improved chip evacuation
• Intended material: timber and common wooden materials
• Compatibility: standard drill chucks and quick-change holders

How to use

Select an appropriate drilling speed for the wood type and secure the drill bit in the chuck or quick-change adapter until it is firmly seated. Mark the drilling position and, if needed, use a center punch or pilot mark to guide the bit. Apply steady, even pressure while drilling; allow the spiral flute to evacuate chips and withdraw periodically for deeper holes to clear debris and prevent overheating. Finish the hole with light passes if a smoother edge is required.

Usage recommendations

Use lower to moderate speeds for hardwoods and higher speeds for softwoods; avoid excessive axial force to prevent bit wander and overheating. For through-holes, back the bit out occasionally to clear chips. Inspect the cutting edge before use and replace the bit when wear degrades hole quality.