Our metal-working range covers the high-speed steel (HSS) and cobalt drill bits that shops rely on for drilling steel, stainless and hard alloys. Cobalt bits keep their edge under the heat of tough metals, while HSS handles everyday drilling affordably.

Many feature a 135° split point that starts on contact without a center punch and won’t walk, plus parabolic flutes that clear chips fast for cooler, cleaner cutting.

HSS vs cobalt vs carbide  |  Drill bit size & speed chart

Bellhanger drill bits (installer bits) are long, flexible bits with a hole in the tip for pulling wire or cable back through the hole you just drilled — a favorite of electricians, alarm and low-voltage installers.

Their extra length lets you drill through walls, joists and tight cavities in a single pass. In stock in the lengths and diameters installers use most.

Bits for electricians  |  Extra length drills

Get the sizes you reach for most in one organized case with our drill bit sets and indexes. A good set means you always have the right bit on hand — and the index keeps them protected and easy to find.

Choose from fractional, number and letter drill sets in high-speed steel and cobalt, for everything from household jobs to the professional shop.

Beginner’s guide  |  Drill bit size chart

Drill fast, clean holes in concrete, brick, block and stone with our carbide-tipped masonry drill bits. The hardened carbide tip and reinforced flutes stand up to the pounding of a hammer drill or rotary hammer, so they stay sharp far longer than standard bits.

From small anchor holes to large-diameter runs, we stock the sizes contractors, masons and electricians reach for every day. Pair them with a hammer drill for the best results in hard masonry.

Bits for masons & concrete  |  How to choose a bit  |  Diamond bits for tile

Reduced-shank drill bits have a shank turned down smaller than the drill body, so you can chuck a large-diameter bit in a standard 3/8″ or 1/2″ drill. That means bigger holes without needing an oversized or industrial drill.

Ideal for metalworkers, fabricators and tradespeople who need above-1/2″ holes from an ordinary drill. See also our Silver & Deming drills for the same large-hole capability.

Silver & Deming drills  |  What size bit to use

Our solid carbide drill bits are machined from a single piece of tungsten carbide for maximum hardness, heat resistance and edge life — ideal for production drilling in hardened steel, cast iron, abrasive plastics and dense hardwoods where high-speed steel wears out fast.

With over 775 sizes in stock, you’ll find the exact diameter, flute length and point style your job needs. Solid carbide holds tight tolerances and leaves a clean finish, making it the go-to choice for machinists, fabricators and precision shops.

Carbide vs HSS vs cobalt  |  Drill bit size chart  |  Carbide-tipped drills