Draper-Expert-0-150mm-Metric-Dial-Caliper-Draper-Expert-52417-p-B-I-Expert-Quality-I-B-manufactured-from-hardened-stainless-steel-Slider-displacements-are-amplified-by-a-rack-&-pinion-mechanism-&-indicated-on-the-dial-Four-way-measurement-internal-external-depth-&-step-Reading-0-02mm-Slider-has-lockscrew-function-Display-packed-in-plastic-storage-case-p-Draper-Expert-52417-0-150mm-Metric-Dial-Caliper