Screwdriver Types and When to Use Each

Reach for the wrong screwdriver and you’ll strip the head, chew up the trim, or round off a screw so badly it has to be drilled out. Match the tip to the fastener and the same job takes ten seconds and leaves no marks. Knowing the handful of common tip types — and when each one earns its spot in the drawer — is one of the cheapest skills in the whole shop.

The tips you’ll actually meet

Screw heads come in a manageable number of drive types, and each exists for a reason — better grip, higher torque, or resistance to tampering. Here’s what shows up in a normal home and what each one is really for.

Tip: “Pozidriv” (PZ) looks like Phillips but has extra angled lines between the arms. A Phillips driver will slip in it. If you see those little tick marks, you need a Pozidriv bit — common on European furniture and appliances.

Phillips vs. square vs. Torx: the everyday three

Ninety percent of the screws you’ll drive are one of these three. Phillips is everywhere because it’s cheap and self-centering, but its sloped flanks are designed to “cam out” (pop up and out) under load — great for a factory line that doesn’t want over-tightened screws, annoying when you’re driving a long fastener by hand. That’s where square and Torx shine: their flat, deep recesses grip the driver and refuse to slip, so nearly all the modern deck and exterior screws your neighborhood hardware store stocks use one or the other. Torx in particular transfers the most torque with the least effort, which is why premium construction screws from brands like GRK and SPAX have standardized on it.

The practical takeaway: keep a #2 Phillips and a #2 square within reach for general work, and buy Torx drivers (or driver bits for your drill) the first time a box of screws calls for them. It always pays for itself — a T25 bit that costs a couple dollars saves a whole deck’s worth of stripped heads.

Getting the size right

Tip type is only half the battle; tip size is what actually saves the screw. Phillips runs from #0 (small electronics) through #1, #2 (the household default), and up. Slotted is measured by blade width and thickness — a blade that’s too narrow twists in the slot and mangles it. A good driver should sit in the head snugly with no wobble and no gap at the bottom.

• #2 Phillips — the single most-used size; most wood and cabinet screws.
• #1 Phillips — smaller electronics, light-switch and outlet screws.
• 3/16" and 1/4" slotted — covers most switch plates, terminals, and trim.
• #2 square — the deck-and-cabinet workhorse.
• T15 / T20 / T25 Torx — the trio that handles most structural screws.

For phones, glasses, and laptops, step down to a dedicated precision screwdriver set — those tiny fasteners strip in an instant under a full-size driver.

Handles, shafts, and the driver behind the bit

Beyond the tip, a few build details separate a driver you’ll keep for twenty years from one that blisters your palm. A cushioned, oversized grip lets you put real torque down without a sore hand. A magnetic tip holds the screw so you can start it one-handed. And for anything past a few fasteners, a set of interchangeable bits in a drill or impact driver beats muscle every time.

Stanley, Klein, Wera, and Milwaukee all make excellent hand drivers; Klein’s insulated line is the go-to for electrical. For volume work, load Phillips, square, and Torx bits into a drill — browse driver bits or a full bit set so every tip is one click away.

Pick by the job in front of you

Frequently asked questions

The right tip turns a fight into a ten-second job — and the right advice is free at your local independent hardware store, where someone will hand you the exact driver for the screw in your palm. Not sure which set to start with? Ask us here and we’ll point you to the tools worth keeping for twenty years.