Features Independent Dial: The hardness tester adopts an independent dial, built in shrapnel type force transmission, provides accurate measurement, intuitive and clear reading Mechanical Rule Design: The hardness durometer adopts mechanical rule design, equipped with pressure spring detection device, can be tightly connected and assembled Simple Operation: The hardness meter is easy to operate, just follow the instructions, with high efficiency and good reliability Lightweight and Portable: The hardness gauge is small in size, lightweight and portable, and can be easily held and used in various situations 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 life Feature: 1. Independent Dial: The hardness tester adopts an independent dial, built in shrapnel type force transmission, provides accurate measurement, intuitive and clear reading 2. Mechanical Rule Design: The hardness durometer adopts mechanical rule design, equipped with pressure spring detection device, can be tightly connected and assembled 3. Simple Operation: The hardness meter is easy to operate, just follow the instructions, with high efficiency and good reliability 4. Lightweight and Portable: The hardness gauge is small in size, lightweight and portable, and can be easily held and used in various situations 5. 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 life How to Use: 1. Place the sample between the anvil and the indenter and depress the handle until you feel the bottom. At this time, the pointer of the meter will point to a reading, which is the measured hardness value.  2. Excessive pressure beyond this limit will not damage the durometer, however, it is not necessary.  3. The handle should still be held firmly during the reading, any twisting or movement during the test will cause an inaccurate reading. Specification: Item Type: Metal Hardness Tester Material: Iron Application: Metal hardness measurement Range: 0-20HW Accuracy: 0.5HW Applicable Material: Aluminum alloy Hardness Range: 25-110HRE Sample Size:&nbs Package List 1 x Metal Hardness Tester 1 x Hard Seat Protecting Loop (on the host) 2 x Hardness Block 1 x Spare Probe 1 x Probe Storage Box 1 x Correction Wrench 1 x Screwdriver 2 x Key 1 x Tool Box