50-300mm Metric Tubular Inside Micrometer Set

Set consists of 13, 25, 50 (2pcs), 100 mm Extension Rods.
Micrometer Head Travel: 13 mm
Range: 50-300 mm
Graduation: 0.01 mm
Accuracy: (3+n+L/50) µm, n=number of rods, L=max. measuring length