DEWALT Drill Bit Set, 21-Piece

A worn or limited bit selection can turn a simple drilling job into a series of pauses to find the right size. This DEWALT 21-piece drill bit set covers a range of common fractional sizes and is intended for general-purpose work in metal, hardwood, softwood, PVC, and fiberglass. Its split-point tips are designed to start on contact, while the flute and coating details target chip removal and corrosion resistance. It’s a practical spread for mixed home or shop projects, though the available information doesn’t establish shank dimensions or include details about storage.

Key specifications

These are high-speed steel twist bits with a black-and-gold oxide coating, a 135-degree split point, and a 31-degree helix. The maker describes the coating as helping resist corrosion and support durability. The parabolic flute design is intended to move chips out during drilling in metal and wood, and the 31-degree helix moderates the flute’s aggressiveness for deeper holes. Those are useful design choices for varied drilling tasks, but they don’t replace choosing the right bit and drilling approach for the material.

The split point is meant to reduce wandering when starting on a hard surface. In practical terms, that can help when placing a hole on a marked spot in metal rather than letting the bit skate across the surface. The product information doesn’t provide shank dimensions, so chuck fit can’t be assessed without that measurement.

Who it’s for

This set suits someone who wants a spread of drill sizes for occasional repairs, woodworking, and general projects involving the listed materials. It may save the hassle of buying each common size separately, and duplicate bits in several sizes give you another of those sizes in the set. It makes sense if your jobs vary from small pilot holes to larger openings and you value having several options at hand.

It might not be a great match if you need a specialized set for one demanding material or a project with specified drilling tolerances, the description only presents these as general-purpose bits. It also doesn’t say whether a storage case is included, which matters if organized, portable storage is part of your buying decision.

What you get

The set contains 21 bits: two each in 1/16, 5/64, 1/8, 3/16, and 1/4 inch, plus one each in 3/32, 7/64, 9/64, 5/32, 11/64, 7/32, 15/64, 13/64, 5/16, 3/8, and 1/2 inch. That range gives you several smaller sizes for pilot holes and fastening prep, along with larger options for more open holes. The duplicated sizes are useful when a frequently used bit wears or goes missing, but the set description doesn’t specify a case or other accessories.

Questions before you buy

What materials are these bits intended for? The listed uses are metal, hardwood, softwood, PVC, and fiberglass. The description doesn’t give material-specific speed or technique guidance.

What is the split point designed to do? Its 135-degree tip is intended to drill on contact and reduce walking on a hard surface, which can help keep a hole aligned with your mark.

Are multiple bits included in every size? No. The set has duplicates in 1/16, 5/64, 1/8, 3/16, and 1/4 inch, the other listed sizes appear once.

Is it worth it?

The appeal here is range: instead of building a small collection one size at a time, you get 21 bits across smaller pilot-hole sizes and larger options, with a design intended for several common materials. That makes it a sensible choice for mixed, general-purpose work where convenience matters more than having a highly specialized bit for every task. If you need confirmed chuck compatibility, a specified storage solution, or guidance for a particular demanding application, the listing leaves those questions open. Choose it for breadth across everyday drilling jobs, look for a more explicitly specified set when those missing details are central to the project.