Numeracy in the Automotive Trades


Automotive-Trade Tools

Brake drum gauge

An indispensable instrument for precisely determining the wear condition of the brake drums. It enables fast and simple measurement of the brake drum diameter or the amount of wear.

If air brakes are used, the minimum thickness is 3.2 mm ([latex]\frac{1}{8}[/latex] inch). If hydraulic disc, drum or electric brakes are used, the minimum thickness is 1.6 mm ([latex]\frac{1}{16}[/latex] inch). The maximum allowable brake drum diameter is stamped or cast into the outer edge of the drum. Place a brake drum diameter gauge inside the drum. Take several measurements within 90 degrees of each other at the top and bottom of the inside of the drum’s friction surface. nominal diameter: Replace the brake drum.

Telescoping gauge

Telescoping gauges are indirect measuring devices used to measure the internal diameter of a bore, hole, groove, slot, etc. This T-shaped tool consists of a handle, two telescopic, spring loaded, plunge rods and a locking screw.

Calipers-Micrometer

Calipers, which come in analog and digital measuring forms, are a must-have instrument for determining the distance between two opposing surfaces of an object. The whole distance can be measured using an integrated ruler by setting the tips of such a caliper to fit all across the object surface, and removing the calipers. Calipers are used in a wide range of professions, including mechanical engineering, science, and medicine, as well as in the field by metalworkers, forestry researchers, and woodworkers.

In many aspects, the design of a micrometer is identical to that of a caliper. A micrometer is used in the same way as a caliper is used. Micrometers are commonly used in machine shops and in the mechanical engineering community. It’s used to determine an object’s length, width, and depth, as well as its thickness.

Tread depth gauge

Designed to measure the degree of wear of tire surfaces.

Tire pressure gauge

Used to measure the pressure of the tyres of a car, motorbike or any vehicle that uses inflated tires. Gauges offer accurate and reliable readings and come in both standard or digital formats.

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Trade Skills for Success: Numeracy Copyright © by Karynn A. Scott is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

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