Feature:1. Independent Dial: The hardness tester adopts an independent dial, built in shrapnel type force transmission, provides accurate measurement, intuitive and clear reading2. Mechanical Rule Design: The hardness durometer adopts mechanical rule design, equipped with pressure spring detection device, can be tightly connected and assembled3. Simple Operation: The hardness meter is easy to operate, just follow the instructions, with high efficiency and good reliability4. Lightweight and Portable: The hardness gauge is small in size, lightweight and portable, and can be easily held and used in various situations5. Sturdy and Durable: The hardness tester is made of excellent iron material, which is sturdy and durable, not easy to be damaged, and can greatly extend the service lifeSpecification:Item Type: Metal Hardness TesterMaterial: IronApplication: Metal hardness measurementRange: 0-20HWAccuracy: 0.5HWApplicable Material: Aluminum alloyHardness Range: 25-110HRESample Size: Thickness: 0.6-13mmInner Diameter: >10mm.Package List:1 xMetal Hardness Tester1 x Hard Seat Protecting Loop (on the host)2 x Hardness Block1 x Spare Probe1 x Probe Storage Box1 x Correction Wrench1 x Screwdriver2 x Key1 x Tool Box