Drill bit for wood GRAPHITE 30 x 460 mm, twist type

Twist drill bit for wood by GRAPHITE, diameter 30 mm and overall length 460 mm, designed for drilling deep holes in timber and structural wooden elements. The long shank and twist-type cutting geometry provide efficient chip evacuation and stable drilling in soft and hardwoods. The bit is suitable for use in hand-held electric drills and drill presses when a wood-specific flute and point geometry are needed to achieve clean, straight holes through beams, planks and joinery components.

Advantages

The 30 x 460 mm twist drill bit offers extended reach for drilling through thick timber or multiple workpieces without repositioning. Its twist geometry improves chip removal and reduces friction, helping to maintain drilling speed and minimize heat build-up. The long, straight shank ensures compatibility with standard drill chucks and provides stable clamping for both portable drills and bench-mounted machines. The design focuses on producing clean entry and exit holes with reduced splintering on wood surfaces.

Suitable for

• Drilling deep holes in beams and posts
• Creating holes for long dowels, bolts or conduits through timber
• Carpentry and joinery work requiring precise, straight holes
• Site work with hand-held drills and workshop use on drill presses

Key specifications

• Diameter: 30 mm
• Overall length: 460 mm
• Material type: steel with wood-oriented twist flutes (manufacturer specification)
• Cutting geometry: twist-type designed for wood drilling
• Shank style: long straight shank compatible with standard chucks

How to use

Secure the drill bit in the drill chuck firmly and set the drill to an appropriate speed for wood (moderate to high depending on wood hardness). Align the bit on the marked drilling point and apply steady pressure, allowing the twist flutes to evacuate chips. For deep holes, periodically withdraw the bit to clear chips and prevent clogging. Use clamping or fixtures to secure the workpiece and to maintain straight, safe drilling. Inspect the bit before use and replace it if the cutting edges are worn or damaged.

Usage recommendations

For best results, choose drill speeds suitable for the specific wood species, use cutting lubricant only when recommended for certain hardwoods, and always wear appropriate eye and hand protection. When drilling very long or oversized holes, consider pilot holes or step drilling to reduce load on the bit and the drill.