B&B 40180 - B&B Dial Bore Gauge

Precisely measure bores to .0005" accuracy. The range capacity is 2" to 6", that accommodates the full spectrum of performance engine assembly requirements including rod and crank bearings and piston bores. 6" depth capacity lets you also check bore tapers. Kit includes dial indicator, 11 various length anvils, and a protective storage case that keeps everything organized.