Drill bit DeWalt DT4581-QZ, pack 1 — straight shank single piece

DeWalt DT4581-QZ is a single-piece straight shank drill bit supplied in a pack of one, designed for rapid drilling of clean and accurate holes in both hardwood and softwood as well as wooden boards and plaster boards. The bit features a threaded pilot point that draws the cutting head through material for quick penetration and precise hole placement. An anti-slip shank with three flat surfaces prevents rotation in the drill chuck and helps transfer maximum power from the drill to the bit.

Advantages

The straight shank and three-flat anti-slip design reduce slippage in the chuck, improving torque transfer and drilling control. The threaded pilot point pulls the bit into the workpiece, reducing walking and enabling faster, more accurate starts. The bit’s geometry and cutting edges are intended to produce clean hole edges and reduce tear-out in wood and plasterboard, making it suitable for applications that require neat finishes.

Suitable for

• Drilling holes in hardwood and softwood
• Creating clean holes in wooden boards and panels
• Installing fixtures through plasterboard
• Situations requiring a single replacement or spare drill bit

Key specifications

• Straight shank design with three flat surfaces to prevent slippage
• Single-piece construction supplied as one bit per pack
• Threaded pilot point for self-feeding into material
• Optimized for rapid, clean drilling in wood and plasterboard

How to use

Select a compatible drill with an appropriate chuck for a straight shank bit, secure the DeWalt bit firmly in the chuck using the flat surfaces to prevent rotation, and set the drill to an appropriate speed for the material. Position the threaded pilot point on the desired mark and begin drilling with steady, controlled pressure; the pilot thread will pull the bit into the workpiece. Withdraw the bit periodically on deeper holes to clear chips and check hole quality. Ensure the drill is switched off and unplugged or the battery removed before fitting or removing the bit.

Usage recommendations

Use moderate drill speed and steady pressure when working with hardwood to avoid overheating. For plasterboard, a lower speed helps reduce tearing. Regularly inspect the bit for wear; replace it when cutting performance degrades to maintain clean hole edges.