Mitutoyo 137-213 Tubular Inside Micrometers 2-20" , Extension Rod Type. Wide range of ID measurements by combining extension pipes and anvils with micrometer heads. Suppled in a fitted plastic case.
FEATURES:● Range: 2" - 20"● Travel of micrometer head: .5" ● Accuracy: +/-{.00015+.00005n+.00005R/2}* R=Maximum measuring length (inch) n=Number of rods Fraction rounded up ● Extension rods: .5", 1", 2" (2 pcs.), 4", 8" |