How to Use Bit Storage Blocks as a Bolt Gauge for Drilling Pilot Holes
posted on April 1, 2011 by Woodworker's Journal
Drill Bit Pilot Hole If you make your own drill bit storage block, you can check the holes with bolts to check for size for drilling the pilot.

When I need to drill a pilot hole for a fastener or dowel, I select my bit using a fail-safe method: I store my bits in a block of hardwood labeled with each bit size. I used the drill bits themselves to bore their respective holes in the block. To find the right bit for the job, I take the fastener and use the block as a hole-sizing gauge. When the bolt just fits the hole, I know I’ve got the correct bit for drilling the pilot.

posted on April 1, 2011 by Woodworker's Journal
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