What’s the correct pilot hole size?

Wood screws are almost always easier to drive and less likely to split if you drill pilot holes first, especially near the end of a board. But what size hole should you make? For screws, the diameter of the drill bit for the pilot hole should match the inner diameter of the screw—not the screw’s threads. The easiest way to check this is to hold a drill bit up against a screw with the drill bit eclipsing the screw so only the threads show. Learn how to drive screws perfectly here.

Plus: 5 must-have drill attachments.

When you’re ready to start your project, be sure your drill bits and screws are at the ready.

Cordless Kitchen Drill Mixer

Drive Spikes with a Demo Hammer

Uncork with a Screw

Lift with a Clamp

Cut Pipe with a String

Shape Stone with a Router

Shine Shoes with a Drill

Yank Brads with Dull Nippers

Level with a Garden Hose

Clean with a Blower

Brush with a Drill

Buff a Finish with a Sander

Drive Hooks with a Wrench

Clear Clogs with a Pick-Up Tool

Mark Angles with a Miter Gauge

Lube with a Pencil

Flatten a Board with a Router

Plan with a Garden Hose

Inject Glue with a Compressor

Cut with a Drill

Reusable Leaf Chute

Stain with a Compressor