Simple Gauge for Inside Measurements
Use this measuring tool to transfer an inside dimension to a ruler or to set up a stop block.This tool is basically a telescoping device for transferring an inside dimension to a ruler or for setting up a stop block. The gauge is made from two nested sections of anodized aluminum angle held together with a small spring clamp. I have found the most practical size of angle is 3/4 in. by 1/2 in. (outside dimensions). Make sure you get the kind of angle with square inside corners rather than the kind with rounded inside corners.
If you can’t find a small spring clamp, a binder clip from a stationery store will work fine.
Drawing: Jim Richey
Fine Woodworking Recommended Products
Suizan Japanese Pull Saw
Veritas Precision Square
Marking knife: Hock Double-Bevel Violin Knife, 3/4 in.
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