DEWALT Drill Bit Set, 21 Pc High Speed Steel DEWALT Bits, Black and Gold Oxide Coated, 135 Degree Split Point, 31 Degree Helix (DWA1181)
$24.97
DEWALT 21-Piece Black and Gold Drill Bit Set
Handle general-purpose drilling in metal, wood, plastic, PVC, and fiberglass with the DEWALT DWA1181 21-piece high-speed steel drill bit set. Black and gold oxide coating, 135-degree split-point tips, and a durable 3-flat shank support reliable everyday performance.
- 21-piece assortment for common drilling tasks.
- Black and gold oxide coating helps resist corrosion.
- 135-degree split point helps reduce walking.
- 31-degree helix supports controlled chip removal.
- 3-flat shank helps reduce chuck spin.
DEWALT 21-Piece Black and Gold Drill Bit Set
The DEWALT DWA1181 21-piece drill bit set is designed for reliable general-purpose drilling across common workshop, home improvement, and maintenance applications. Made from heavy-duty high-speed steel, these bits are suitable for drilling into metal, hardwood, softwood, plastic, PVC, and fiberglass when the correct bit size, speed, and pressure are used. The set provides a practical selection of fractional sizes for everyday projects, from small pilot holes to larger openings.
Durable High-Speed Steel Construction
Each bit is manufactured from high-speed steel and finished with a black and gold oxide coating. This coating helps resist corrosion and supports smoother chip movement during drilling, while the tapered web design adds strength and helps reduce the chance of breakage under normal use. The combination is useful for DIY repairs, furniture assembly, shelving, cabinetry, automotive maintenance, and general fabrication tasks.
The set includes commonly used sizes from 1/16 inch through 1/2 inch, with selected smaller and mid-range sizes supplied in duplicate for convenience. Having several sizes available makes it easier to choose the correct diameter for pilot holes, fasteners, anchors, and other project requirements without purchasing individual bits separately.
Split-Point Tips for Easier Starting
The 135-degree split-point tip is designed to help the bit start on contact and reduce walking across harder surfaces. This can make hole placement more controlled, especially when beginning on metal or another smooth material. The 31-degree helix helps balance cutting performance and chip removal, including when drilling deeper holes in suitable materials.
For best results, mark the drilling location clearly and select a bit that matches the fastener or opening required. When drilling metal, use suitable lubricant and moderate pressure. For wood and plastic, allow the bit to cut without forcing it, and clear chips regularly when creating deeper holes.
Secure 3-Flat Shank Design
The 3-flat shank helps reduce spin-out inside compatible drill chucks and provides a more secure connection during operation. Before drilling, ensure the bit is seated correctly and the chuck is tightened firmly. Begin at a controlled speed, keep the drill aligned with the work surface, and increase pressure gradually only when necessary.
Always wear appropriate eye protection and keep hands away from the rotating bit. Inspect accessories before use and replace any bit that is bent, cracked, or excessively worn. Store the set in its case or another dry, organized location to help protect the coating and keep the sizes easy to identify.
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