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Power Tool Accessories.

Drill Terminology



High Speed Steel (HSS or HS)

High speed steel is a steel alloy used in the manufacture of Jigsaw blades and drill bits. It is superior to the older high carbon steel because it can stand higher temperatures without losing its temper (hardness).


This property allows HSS to cut faster than high carbon steel, hence the name high speed steel.

Tungsten Carbide

This is the material used for the manufacture of the tips brazed into Masonry impact and hammer drills.


It is extremely hard, but tends to be brittle. This is why it is supported in a softer steel drill shank.

Titanium Nitride coating (TiN)

This is an extremely hard ceramic material, used as a coating on steel components to improve the materials surface properties.


Applied as a thin coating, TiN is used to harden and protect cutting surfaces, thus improving wear properties.

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