Wall Thickness Gauge
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Wall Thickness Gauge, Know exactly whether a customer's barrel has adequate wall thickness before accepting and machining it for screw-in chokes. Unique design allows the gunsmith to mount the instrument (not the barrel) in a bench-top vise for ease of use and fast, accurate measurements. Aluminum block with steel probe and gauge arm provide excellent stability and consistency. High-grade, Procheck brand, dial indicator measures to .001''''. Helps check barrel concentricity, too. Mfg: Manson Precision SPECS: Aluminum and steel, natural finish. 18A 3/4'''' (47.6cm) long x 5'''' (12.7cm) high.