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Module one: History and Safety
Module four: Specialist Electricians Tools
Module three: Core Electricians Tools
Module three: Core Electricians Tools
Hand Saws.
Common Terminology
Harpoint saws
Originally saws were made from fairly hard steel and from time to time the teeth would be re-sharpened using a file and reset using special pliers. This took a fair amount of time and specialist skill.
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Over time improvements in manufacturing processes led to the development of hardpoint saws, which removed the need for manual sharpening completely.
A hardpoint saw can be identified by its blackened teeth (from the heat treatment), although this can be difficult with colour coated blades.
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The vast majority of saws now available are hardpoint saws, but even then the quality of the steel and heat treatment used can have a big effect on the length of time the teeth stay sharp. Poor steel combined with poor heat treatment = bad value for money.
A hardpoint saw has teeth that are tip-hardened to give an extra long effective cutting life. The teeth will typically last up to 5 times longer than unhardened teeth and they are particularly suited for cutting man made composite boards such as Chipboard, Plywood and Hardboard.
"The teeth will typically last up to 5 times longer than unhardened teeth"
The C.K Sabretooth™ saw is a hardpoint saw that uses premium quality steel combined with exceptional heat treatment control. The result is a saw that gives a first class speed of cut and outstanding wear resistance.
The only draw back of hardpoint saws is that they can not be re-sharpened, but the time-saving achieved, combined with the relatively low price, makes them a much more attractive option.