Metal Drill Bits

South Coast Fasteners, Inc. offers a full range of metal drill bits built for real work in real shops. Whether you’re in construction, fabrication, auto repair or general maintenance, the right bit makes a difference and we’ve made it easy to find what you need. Our line includes Proferred HSS sets, durable black oxide and black and gold options, cobalt bits for tougher materials and specialty styles like double ended and step bits. These are bits meant to last. Meant to cut clean. Meant to help you keep working without stopping to replace what should’ve worked in the first place. Let’s get you dialed in.

Order Premium Metal Drill Bits Today

Use the options below to order top-quality metal drill bits in the sizes and specifications you need. Questions about bit selection, materials, or finishes? Contact us or request a quote and our Anaheim, CA team will assist you. Whether you need repeat bulk orders or one-off small batches, South Coast Fasteners has you covered with Proferred HSS sets, black oxide and black & gold HSS, and M35/M42 cobalt options.

Types of Metal Drill Bits We Offer at South Coast Fasteners

Proferred HSS Drill Bit Sets

Perfect for daily use on site or in the shop. These sets come pre-organized in indexed cases and feature high speed steel bits made for drilling into wood, mild steel, aluminum, and plastic. The value here is in the versatility. You get a full spread of fractional sizes in a compact, dependable kit that covers your basics without overcomplicating things.

M2 HSS Black Oxide Drill Bits

Made from rugged M2 high speed steel and finished with black oxide to reduce friction and heat. These bits are ideal for repetitive drilling in low to medium hardness metals. The coating helps retain cutting fluid and improves bit life without the cost of a cobalt upgrade. A reliable workhorse in general metal fabrication, assembly, and shop environments.

M2 HSS Black And Gold Drill Bits

These bits feature the same M2 core with a dual black and gold oxide finish for better wear visibility and increased resistance to edge dulling. You’ll notice smoother entry, cleaner chip flow, and longer intervals between bit replacements. A solid choice for shop techs or anyone who values consistency and performance during repeated use.

M35 Cobalt Drill Bits

Designed to push through stainless, alloy steels, and tougher materials. With 5 percent cobalt content, these bits resist dulling and overheating even when you're drilling under pressure. They’re a staple in machine shops and maintenance departments where standard HSS just doesn’t hold up.

M42 Cobalt Double Ended Drill Bits

Twice the value, zero downtime. These M42 bits include 8 percent cobalt and two cutting ends on a single shaft, giving you double the service life with fewer tool changes. When you're on a deadline or drilling nonstop, that makes a difference. These are ideal for high-volume fabrication or repair jobs where bit swaps slow things down.

M42 Cobalt Spot Weld Drill Bits

Specifically engineered for removing spot welds in body shops, frame work, or panel replacement jobs. The cutting point is ground for precision entry and minimal distortion. The M42 cobalt base ensures durability under repeated heat and pressure, exactly what you need when separating joined steel sections without tearing into what’s underneath.

M2 HSS Step Drill Bits

Built for drilling clean holes through electrical panels, sheet metal, and switch boxes. The step design lets you move through multiple hole sizes without changing the bit. Made from M2 steel for toughness, these are a favorite in electrical, HVAC, and service truck setups where speed and flexibility matter.

Metal Drill Bits - Available Finishes

South Coast Fasteners offers drill bits with performance-focused finishes that help reduce friction, improve chip evacuation, and extend the usable life of each bit.

Black Oxide

A classic finish that helps reduce rust and friction during cutting. It’s especially helpful when using cutting oils or drilling dry through mild steel or sheet metal. This finish is found on most of our general-purpose HSS bits because it strikes the right balance of performance and price.

Black and Gold Oxide

A layered oxide finish that’s as practical as it is visible. The gold section gives you a fast visual cue when bits start to dull, while the black helps reduce surface friction and maintain smooth cutting. A step up from basic black oxide when you’re drilling longer or want to track tool life more closely.

Why Choose South Coast Fasteners?

At South Coast Fasteners, we know what it’s like to hit a dull bit halfway through a job. It wastes time, money, and energy, and makes your work harder than it should be. That’s why we only stock drill bits we’d trust in our own shops. We’ll help you figure out what works, answer your questions without the runaround, and make sure you’re getting the best value for the job.

Shop Metal Drill Bits Online at South Coast Fasteners

Browse our full lineup of drill bits, including Proferred HSS sets, M35 and M42 cobalt options, and specialty bits for spot welds or step drilling. If you’re not sure which material or finish fits your application, we’ll help walk you through it. Order online with confidence, or reach out and we’ll make sure you’ve got what you need. Have questions or need pricing? Contact us or request a quote and our Anaheim, CA team will help right away.