型號（貨號）測量范圍分辨率精度293-230/293-240*0-25mm0.001mm公制型 0.001mm293-231/293-241*25-50mm293-232/293-242*50-75mm293-233/292-243*75-100mm 0.002mm293-250100-125mm293-251125-150mm293-252150-175mm 0.003mm293-253175-200mm293-254200-225mm293-255225-250mm 0.004mm293-256250-275mm293-257275-300mm293-571300-325mm 0.006mm293-572325-350mm293-573350-375mm293-574375-400mm 0.007mm293-575400-425mm293-576425-450mm293-577450-475mm 0.008mm293-578475-500mm