Flat Drill Bit 20 mm x 160 mm by 14 Degrees East – model DT4820

Flat (spade) drill bit 20 mm x 160 mm model DT4820 from 14 Degrees East is a straight-shank woodworking bit designed for drilling through wood and similar soft materials. The tool combines a flat blade profile for efficient chip removal with a centering point and cutting edges shaped to give fast, clean holes. The 160 mm overall length provides adequate reach for common carpentry, installation and general construction tasks, while the 20 mm cutting diameter produces consistent hole sizes for dowels, conduit passes and cable routing.

Advantages

The flat drill bit delivers rapid material removal thanks to its wide blade and sharpened cutting edges, reducing drilling time in soft woods and composite panels. Its shaft is compatible with standard drill chucks and cordless drill drivers, offering straightforward installation and reliable concentricity. The 14 Degrees East manufacturing ensures consistent geometry and balance for reduced wobble and predictable hole quality.

Suitable for

• Drilling clean holes in softwood, plywood and chipboard
• Creating holes for dowels and through-holes for cables and pipes
• Carpentry, furniture assembly and installation tasks
• Use with manual and cordless electric drills

Key specifications

• Cutting diameter: 20 mm
• Overall length: 160 mm
• Blade style: flat (spade) with centering point and cutting edges
• Shaft type: straight shank suitable for standard chucks
• Material suitability: wood and similar soft materials

How to use

Secure the flat drill bit in the drill chuck and tighten firmly. Mark the drilling position on the workpiece and hold the drill perpendicular to the surface for accurate entry. Start drilling at low speed to allow the centering point to engage, then increase speed as the bit cuts. Apply steady, moderate pressure—avoid forcing the bit—to allow efficient chip evacuation and prevent splintering. Withdraw the bit periodically on deeper holes to clear chips and reduce heat build-up.

Usage recommendations

Use appropriate personal protective equipment, such as safety glasses and hearing protection. When drilling near finished surfaces, back the workpiece or apply masking tape to reduce tear-out. For improved life and cleaner holes, ensure the bit is sharp and use recommended speeds for wood with cordless or corded drills.