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Our part# ALL-55000-FBA-ARange: 5/16" - 6" (8mm to 150mm)
6 pc set includes: 1 gage: 5/16 - 1/2" range x 4.20" overall; 1 gage: 1/2 - 3/4" range x 4.40" overall; 1 gage: 3/4 - 1-1/4" range x 4.40" overall; 1 gage: 1-1/4 - 2-1/8" range x 5.85" overall; 1 gage: 2-1/8 - 3-1/2" range x 5.85" overall; 1 gage: 3-1/2 - 6" range x 5.85" overall
Gage expands in a hole to be measured (locks in place and then removed to determine final hole size using a micrometer or calipers). Also works great in recesses, slots, bores, etc. Rigid handle and double action design (self-centering) for quick checking of inside measurements
Satin chrome finish. Constant spring tension for uniform feel. Contact points are hardened tool steel and precision ground in the end measuring radius. Vinyl pouch included