Is the rod going into the chamber piece on either attachment loose, moving in/out causing a rattle & loud thud while wearing ear pieces?

The rod is for detecting metallic noise such as bearings, rocker arms, timing chain, water pump, wheel, transmission or axle etc etc .. also can be used for injectors, and relays, the hollow tube is for air leak, vacuum leak intake and exhaust leak. The rod is screwed into the plastic round box. You need to remove tube from the plastic box and connect it to the hollow tube to hear the air leak or vacuum leak, and use the rod to listen to any metallic noise. This is the same principle of the stethoscope doctors are using in the hospital which there is a part can be rotated to change to hear the different sounds air breathing and heart beat and blood flow. Do some experiments with some noises and you will find it very useful, a must for any Auto-mechanic

Will this work on a tractor too? I want to get it as a gift.

It will work great on a tractor. If you're hearing an odd noise during idle you'll be able to use the probe to check the water pump, hydraulic pump, valve train, alternator, etc. If you have a baler and you hear the squeak of impending bearing failure you'll be able to narrow down what shaft the bad bearing is on.

This could work to find air leaks nearly at an pipe line? With medium pressure, about 120 psi.

Yes. I use it also to find vacuum leaks

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Description

🔧 Tune into precision with every sound!

ERGONOMIC DESIGN - Hollow tube allows for easy maneuvering in tight spaces.
DURABLE CONSTRUCTION - Crafted from stainless steel for long-lasting performance.
ENHANCED SOUND CLARITY - Unique sound chamber amplifies even the faintest noises.
LIGHTWEIGHT PORTABLE - Weighs only 1.76 ounces for on-the-go diagnostics.
PRECISION NOISE DETECTION - Quickly identifies engine issues with pinpoint accuracy.

The Lisle 52500 Mechanic's Stethoscope is an essential tool for automotive professionals, designed to quickly and accurately locate noises in engines, transmissions, and more. With its super-thin diaphragm and unique sound chamber, this stethoscope amplifies sound for precise diagnostics, while its lightweight and ergonomic design ensures effortless use in hard-to-reach areas.

Specifications

Manufacturer	Lisle
Brand	Lisle
Model	52500
Item Weight	1.76 ounces
Product Dimensions	14 x 5 x 1 inches
Country of Origin	China
Item model number	52500
Is Discontinued By Manufacturer	No
Exterior	Stainless Steel
Manufacturer Part Number	52500
OEM Part Number	52500
Position	Unknown
National Stock Number	5120-01-364-3430

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