Pilot Hole & Drill Bit Size Calculator
Need a perfect hold without splitting your wood? Even the best projects fail with the wrong pilot hole. Using the right drill bit prevents timber from splitting and ensures the screw grips properly for a lasting hold. I have created a pilot hole size calculator tool. Simply select your material and screw gauge below to get the precise drill bit size for your project.
Pro-tip: When in doubt, it’s always safer to start with a slightly smaller bit—you can always drill it again, but you can’t make the hole smaller once it’s done!
Pilot Hole Size Calculator
Pilot Hole & Drill Bit Selector
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