14 Degrees East flat drill bit 22 mm diameter, 160 mm length, model DT4822

Flat drill bit 22 mm diameter, 160 mm length, model DT4822 by 14 Degrees East is a woodworking bit designed to create wide, flat-bottom holes in timber and similar materials. The bit combines a central spur with radial cutting edges to ensure a controlled entry and reduce tear-out on the surface. With a 160 mm total length and a 22 mm cutting diameter, it is intended for common carpentry, joinery and general woodworking tasks that require precise, flat-bottomed holes.

Advantages

The DT4822 flat drill bit provides clean hole entry due to its central spur and sharp cutting lips, which help produce a neat rim and minimise splintering. Its 160 mm overall length allows access to deeper workpieces while the 22 mm cutting diameter delivers consistent, repeatable hole size suitable for dowels, plugs and through-hole fittings. The bit is built for stable drilling motion and accurate hole geometry in soft and medium-density woods.

Suitable for

• Drilling flat-bottom holes for dowels and plugs in furniture assembly
• Creating countersunk or seating holes for fittings and hardware
• General joinery tasks requiring precise, repeatable hole dimensions
• Woodworking projects in softwoods and medium-density hardwoods

Key specifications

• Cutting diameter: 22 mm
• Overall length: 160 mm
• Tip type: central spur with radial cutting edges for flat-bottom holes
• Material: hard tool steel cutting edges (suitable for wood)
• Shank: standard straight shank compatible with common drill chucks

How to use

Secure the workpiece and mark the drilling position. Fit the DT4822 flat drill bit into a drill or drill press chuck and tighten firmly. For best results, start at low to moderate speed and allow the central spur to score the surface before applying continuous feed. Apply even, steady pressure and withdraw occasionally on deep holes to clear chips and prevent clogging. Finish the hole with a light pass if necessary to remove any minor tear-out.

Usage recommendations

Use appropriate personal protective equipment, including eye protection and dust collection where possible. Match drill speed to material density (lower speeds for hardwoods) and avoid excessive lateral force to maintain hole accuracy. When precise depth is required, use a depth stop or drill press for consistent results.