2-piece measuring tool set, includes: 1) Digital caliper, range: 0-150 mm/0-6", resolution: 0.01 mm/0.0005", with thumb roller (code 1108-150) for 5022, without thumb roller (code 1108-150W) for 5022-W 2) Digital outside micrometer, range: 0-25 mm/0-1", resolution: 0.001 mm/0.00005" (code 3109-25A)