The DEWALT DD5155 Impact Ready Titanium Nitride Coated Drill Bit Set is a 5-piece hex-shank drill bit set built for tradespeople and serious DIY users who need fast bit changes and cleaner starts in common jobsite materials. This is a drill bit set designed for drilling metal, wood, plastics, and PVC with compatible drills and impact drivers. Model Number: DD5155.

What matters here is the combination of impact-ready convenience and practical hole quality. DEWALT uses a 1/4 inch hex shank, which means these bits drop into standard quick-change chucks without the extra step of tightening a round shank bit. If you are bouncing between driving screws and drilling pilot holes, that saves time. The Pilot Point tip is there for a reason too: it helps the bit start on contact with less wandering, which is especially useful when you are drilling thin metal, slick surfaces, or trying to stay on a mark without skating across it.

Durability is one of the main selling points of this set. DEWALT states these bits are ground from a solid one-piece design and are up to 5 times more durable than its current two-piece conventional product. The patented web taper increases rigidity, which helps cut down on bit breakage when the bit sees side load or when you are pushing through harder material. On the job, that means fewer snapped small-diameter bits and less downtime digging broken pieces out of a chuck or workpiece.

The titanium nitride coating is another practical feature, not just a finish. It is there to help extend bit life and support smoother drilling over repeated use. Combined with the two-flute spiral design and 135 degree cutting angle, this set is aimed at general-purpose drilling where you want a bit that cuts clean, starts reliably, and holds up better than bargain-bin bits.

This set covers common small-hole sizes with (2) 1/8 inch bits, (1) 5/32 inch bit, (1) 3/16 inch bit, and (1) 1/4 inch bit. That mix makes sense for electrical, HVAC, automotive, glazing, and general contractor work where pilot holes and small through-holes are routine. The duplicate 1/8 inch bits are a smart inclusion because that is one of the sizes that gets used and broken most often.

If you want a compact set for everyday drilling in mixed materials and you use an impact driver regularly, this one earns its keep. It is not a giant index for every size under the sun. It is a focused DEWALT set built around the sizes many pros actually reach for, with a hex shank format that fits the way a lot of crews work now.

DEWALT DD5155 Impact Ready Titanium Nitride Coated Drill Bit Set is a smart grab-and-go set

This is the kind of compact bit set that makes sense in a service bag, not buried in a drawer.

• Who it's for: Techs, electricians, HVAC installers, mechanics, and contractors who want a few commonly used sizes ready for a drill or impact driver.
• Why it stands out: The one-piece construction, Pilot Point tip, and 1/4 inch hex shank give you a better mix of durability, clean starts, and fast bit changes than a basic round-shank set.
• Worth knowing: This is a focused 5-piece set, not a full index. If you need a wide range of sizes, this is a supplement or daily-carry set, not your whole drill bit lineup.

• Will these bits fit an impact driver? Yes. They use a 1/4 inch hex shank for standard quick-change compatibility.
• What materials are these bits designed to drill? They are designed for metal, wood, plastics, PVC, stainless steel, and fiberglass.
• What tip style do these bits use? They use a Pilot Point tip to help start holes on contact with reduced walking.
• Is this an individual bit or a set? It is a 5-piece set.