Photo 1 of LABEAR-Nut & Bolt Head Size Gauge | SAE 5/16?–1? + Metric 8–25?mm | Pocket Keychain Nut/Bolt Size Finder Caliper for Mechanics & DIY

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Photo 1 of LABEAR-Nut & Bolt Head Size Gauge | SAE 5/16?–1? + Metric 8–25?mm | Pocket Keychain Nut/Bolt Size Finder Caliper for Mechanics & DIYPhoto 2 of LABEAR-Nut & Bolt Head Size Gauge | SAE 5/16?–1? + Metric 8–25?mm | Pocket Keychain Nut/Bolt Size Finder Caliper for Mechanics & DIY