0-4" 0-100mm or 0.01mm Outside Micrometer Machinist Tool Set Of 4 Precision CarbideMaterial: Hard Carbide Box size: 35.3cm x 25cm x 2.7cm 4 micrometers with measuring ranges: 0-25mm (0 - 1"), 25-50mm (1 - 2"), 50-75mm (2 - 3"), 75-100mm (3 - 4" )Features:1. Wooden case is included. 2. Powder coated baked finish. 3. Ratchet handle for precise application of force 4. Complete with calibration standards and wrench. 5. This is a set of professional micrometer, accurate to 0.01mm (0.00039"). 6. Hardened and ground spindle with carbide anvil ensure durability and accuracy.Package included:4 x Micrometers 3 x Calibration standards 1 x Wrench 1 x Wooden caseNotes:1. Manual measuring, please allow 1 - 3mm error,thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.