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Step 14: Mistake #2: Tapering Too Quickly

This is for when you're shaping into your longer section of the pen. If you cut too deeply into your wood right at where the hole for your brass tube ends, you might snap the wood since you may have drilled too deep and it was hollow with no brass support at that point.

To avoid this, keep a slimline brass tube nearby and mark that length on your wood. Then keep eyeing that region to make sure you don't cut deeper than the diameter of the slimline bushing at that area. Use calipers to measure that region as a sanity check, if you'd like more security.