Drill bit set DeWalt DT4798 — 5-piece flat wood bits

DeWalt DT4798 is a 5-piece set of flat (spade) wood drill bits designed for fast, efficient drilling of wide holes in timber and similar materials. The set contains five common diameters and combines a flat blade profile with a centring point and shank geometry that provides stable, controlled penetration when used in hand drills and drill drivers. These spade bits are intended for tasks that require clean, wide holes such as running cables, installing pipes, or preparing timber for fasteners and through-bolts.

Advantages

The DeWalt DT4798 spade bits deliver rapid material removal thanks to the flat cutting face and sharp edges, reducing cutting time compared with twist bits for larger diameters. The centre point aids accurate start and reduces walking, while the shank design ensures secure chuck grip for reliable torque transfer. The set covers commonly used sizes for carpentry and trade work, providing versatility for on-site jobs and workshop tasks.

Suitable for

• Drilling wide holes in soft and hard wood
• Running electrical cables and conduits through studs and joists
• Plumbing and HVAC rough-in work requiring pass-through holes
• Carpentry, framing and timber joinery tasks
• General workshop drilling where fast hole removal is needed

Key specifications

• Set composition: five flat (spade) drill bits covering multiple common diameters
• Blade type: flat spade profile with central point for accurate starts
• Shank: designed for secure grip in drill chucks and drivers
• Intended materials: wood and wood-based materials
• Typical use: handheld drilling with electric drills and cordless drivers

How to use

Select the spade bit with the required diameter and insert the shank fully into the drill chuck, tightening the chuck securely. Mark the drilling position on the workpiece and position the centre point on the mark. Operate the drill at a steady speed and apply consistent pressure; allow the cutting edges to remove material without forcing the bit. For deep holes, periodically withdraw the bit to clear chips and reduce heat build-up. After drilling, deburr the hole edges if a smooth finish is required.

Usage recommendations

Use appropriate personal protective equipment (eye protection and hearing protection). When drilling through structural members, check for hidden services and support the workpiece securely. For extended use or hard timbers, use moderate speed and clear chips often to prolong bit life.