Probe D is included in the Basic delivery set of the Leeb Hardness tester TQ-3C.

The Probe D is used for hardness testing:

• All basic types of metals and alloys without additional calibrations (structural, tool, corrosion-proof, heat-proof, non-corrosive steels and alloys as well as alloys of nonferrous metals, castiron, aluminium, bronze, brass);
• Items with surface hardening and high frequency current hardening;
• Items of complicated configuration;
• Heavy and big items with rough surface.

Advantages of Leeb probe

• Hardness measurement in hard-to-reach areas.
• The spatial position of the probe does not affect the measurement result.
• The robust housing is not subject to mechanical stress.
• Long service life.

Probes characteristics

Photo	Probe Type	Weight/thickness/ surface roughness of the article under check	Length/ Diameter	Application
	«D»	3 kg/6 mm/Ra 3,2	138/21 mm	Solving of main hardness testing tasks with surface roughness less than 3.2 Ra
	«E»	3 kg/6 mm/Ra 3,2	138/21 mm	Probe with polycrystalline indenter made of cubic boron nitride to test materials with high hardness
	«G»	6 kg/55 mm/Ra 7,6	200/29 mm	Hardness testing of high structure inhomogeneity items with surface roughness more than 7.2 Ra

ATTENTION! If you buy only Probe D, the Hardness tester TQ-3C should be sent to the retrofit and alignment.