Optional Impact Devices for Leeb Hardness Testers The unit is fitted with the universal Impact Device D as standard. Special impact devices are available for testing in confined spaces, grooves, recessed surfaces, heavy components, thin-walled parts, coated materials, and other specialized applications. These optional impact devices significantly expand the application range of the hardness tester and are fully compatible with the corresponding indicating units. Compatible Hardness Tester Models: TH-160, TH-170, TH-370 Pro, TH-420 Impact Device D Suitable for the majority of hardness testing applications and general-purpose measurements. Impact Device DC Designed for use in confined spaces such as holes, cylinders, and internal measurements on assembled machinery. Impact Device DL Ideal for measurements in extremely confined spaces and at the base of grooves. Impact Device D+15 Recommended for hardness testing inside grooves and recessed surfaces. Impact Device C Suitable for surface-hardened components, coatings, thin-walled materials, and impact-sensitive parts where a smaller indentation is required. Impact Device G Designed for solid and heavy components such as large castings and forgings. Key Features • Compatible with TH-160, TH-170, TH-370 Pro and TH-420 Hardness Testers • Tungsten Carbide Impact Tips • Automatic Recognition on Compatible Instruments • Designed for Specialized Testing Applications • Suitable for Confined Spaces, Grooves, Heavy Castings and Thin-Walled Components • High Accuracy and Reliable Performance • Available as Optional Accessories Applications • Gear Wheels • Internal Bores • Cylinders • Recessed Surfaces • Grooves • Surface Hardened Components • Coated Materials • Thin-Walled Components • Heavy Castings • Forgings • Large Industrial Components For more information about Optional Impact Devices for Hardness Testers, please contact us at 08045134493 or email [vhk_08@yahoo.com](mailto:vhk_08@yahoo.com). Our team will be happy to assist you in selecting the most suitable impact device for your application.