Screw Size & Drill Bit Chart

Find the exact screw and drill bit size for any job. Covers metric and imperial, wood and metal.

Stop splitting timber and stripping screws. Keep every screw size, bolt and drill bit in your pocket, with the exact pilot hole for the material you are drilling, completely offline.

WHAT YOU GET

• Every screw size: metric M-sizes, wood screws and gauge numbers with diameters, threads and heads
• Material-aware pilot, clearance and countersink sizes for softwood, hardwood, plywood and metal
• The full drill-bit chart in millimetres and fractional, number and letter sizes with decimal equivalents
• Diameter and thread finder: enter a size and get the nearest screw or bit straight away
• Head styles and drive types explained: Phillips, Pozidriv, square, Torx and hex

HOW IT WORKS

• Pick your screw by size, gauge or type
• Choose the material you are driving into
• Read the exact pilot, clearance and countersink bit to grab

BUILT FOR THE WORKSHOP

• Works fully offline, so no signal is needed in the garage or on site
• No accounts, no ads, no tracking; everything stays on your device
• Fast, native and clutter-free

Full access to pilot holes, the complete drill-bit chart and the size finder unlocks with a subscription: choose weekly or yearly, or pay once for lifetime access.

Stop guessing and start building. Get the size right the first time.

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