Jon Hosford's beautiful new bore gauge works by a similar method, but measures a bunch of gauges and comes in a fitted wood box. Jon is a great guy. When I told him I owned a Manson gauge and couldn't afford one of his great tools, he showed me how to use my $100 gauge to work like his. Now who else would do that? He will probably be at the Southern demonstrating his gauge. Stop by and say "hi".
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