Cross-cut (Mitre), radial arm saw and chop saws all use circular blades.

This guide takes the reader through the hazards of using powered equipment that could cause HAVS. 

Accelerated wear tests on different fabrics. The fabrics under test are fixed to the rim of the wear wheel, which is rubbed by an arm covered with sandpaper.

This is a new document explaining the need for controlling the fumes generated by welding steel.

It gives some solutions to managing the problem of extraction.