The SKF Stethoscope TKST 11 is a high-quality instrument which is used to perform maintenance and repair work. The use of this stethoscope facilitates the interception of acoustic phenomena on bearings, machines and other rotating parts to prevent failures. The TKST 11 includes a headset, two different length probes (70 and 300 mm), all supplied complete in a sturdy carrying case. Online pre-recorded audio samples are available for the TKST 11 demonstrating the most common encountered troublesome machine noises.