G'day! You're in the shed on a Saturday arvo, keen to get a job done. You line up your drill, pull the trigger, and... screeeech. You're met with a puff of smoke, a lot of noise, and a drill bit that's now as blunt as a brick, having barely made a dent.

It's a fair dinkum frustrating moment, and it's almost always because you're using the wrong tool for the job. Having the best drill bits in your kit isn't about having the most expensive ones; it's about having the right one for the material you're trying to drill.

The Main Players: Your Drill Bit Cheat Sheet

Let's cut through the jargon. When you walk into any Aussie hardware store, you're faced with a wall of options. Here's the lowdown on the main types and what they're actually good for.

1. High-Speed Steel (HSS) Bits: The All-Rounder

These are your classic, general-purpose "black" or "silver" drill bits. They are the go-to for most jobs around the home.

• Best for: Timber, plasterboard, plastics, and softer metals like aluminium.
• The Lowdown: A good quality HSS set is the first thing you should buy for your tool kit.

2. Cobalt (HSS-Co) Bits: The Metal-Chewing Beast

This is the bit you need when your HSS bit gives up the ghost. A cobalt bit isn't just "coated"; the cobalt is mixed right through the steel, making it incredibly hard and resistant to the high heat of drilling metal.

• Best for: Tough, hard metals. This is the best drill bit for stainless steel, cast iron, and other hardened metals.
• Hot Tip: You MUST use these at a slow speed and with a cutting lubricant, or you'll knacker them.

3. Tungsten Carbide Masonry Bits: The Brick Buster

You'll spot this one by its distinctive, spear-shaped tip made of super-hard tungsten carbide. This is what you use in your standard drill on the 'hammer' setting.

• Best for: Drilling into house bricks, mortar, and light-duty concrete blocks to hang a shelf or a picture.
• The Catch: It's not for drilling timber or metal – it'll just tear them to shreds.

4. SDS Bits: The Concrete Pulveriser

This is the big brother of the masonry bit, and it's a whole different beast. An SDS bit doesn't go in a normal drill chuck; it's designed specifically for a Rotary Hammer Drill.

• Best for: Serious hard yakka. This is for drilling proper holes in hard concrete slabs, foundations, and heavy-duty masonry. The drill's 'jackhammer' action does the work, not you.

5. Spade & Auger Bits: The Timber Hogs

Need to drill a big, rough hole through a timber stud to run some wires or pipes? A spade bit (the flat, 'paddle' shaped one) or an auger bit (which looks like a big corkscrew) is your weapon of choice. They're aggressive and designed to rip out a lot of material, fast.

6. Brad-Point Bits: The Tidy Timber Specialist

For fine woodworking or cabinetry, a brad-point bit is the go. It has a tiny, sharp spike in the centre that stops the bit from "wandering" when you start the hole, giving you a schmick, clean, and perfectly placed hole every time.

A Pro's Kit: The Right Tools for the Right Job

Knowing which bit to use from your set is the mark of a pro. A licensed electrician or professional installer knows that having the best drill bits for the job is the first step to a high-quality, compliant installation.

The second step is using those bits to install high-quality, compliant components. A pro knows that a job is only as good as the gear they install. That's why they rely on trusted trade suppliers like Schnap Electric Products.

Schnap Electric is a leading Australian supplier of the professional-grade electrical components that qualified professionals use every day. From the robust, weatherproof enclosures and switchboards that a pro might be drilling into with a cobalt bit, to the high-quality, compliant conduits, cable glands, and outlets that get fitted, they provide the gear that ensures a job is safe, compliant, and built to last. For a job that's professional from the drill bit to the final connection, the pros rely on quality gear from a supplier like Schnap Electric.