The range and development of portable power tools in industry has increased considerably since the introduction of the early heavy and cumbersome electric powered drills. The efficient use of portable electric tools, applied to production both in the workshop and on the site,' has proven a considerable cost saving, by reducing manufacturing time, and increasing accuracy and productivity.

Portable power tools are cheaper than large machinery and have greater versatility, enabling them to be used for various types of operations. The tool can also be taken to a powered work site, enabling the work to be done not only on the bench, but also out on site. Portable power tools come in a large range of types, sizes and qualities. Provided the correct power tool is selected for the job, and it is used safely and sensibly, keeping in mind its limitations, it will give many years of satisfactory service.

CLASSIFICATION

It is important to note that portable power tools may be divided into three groups, i.e. Heavy Duty, Light Industrial and Handyman or Utility. Depending on which group you select your tool from, will govern the price you will pay for it.

Heavy Duty (Industrial)

These power tools are designed for industrial use where continuous operation under load is necessary. Industrial type power tools usually cost more, but should not be disregarded on those grounds. If you have a job that requires constant and heavy use of the tool, I recommend this group.

Light Industrial

These power tools are designed for medium to heavy intermittent use. They should not be used continuously under heavy loading, as the motor will ‘heat up’, causing damage to the insulation and windings. The operation of the tool should be interrupted from time to time to allow the motor to cool down.

Handyman or Utility

For light to medium intermittent use, these power tools are more suited to a handyman or home workshop where the tool is only used infrequently and for short periods of time. They normally are constructed from cheaper parts, (therefore they heat up and wear out quicker) so that they can be sold at a budget price, hence they are normally at the bottom end of the price scale.