Wax vapors are highly toxic. Stone dusts are highly toxic and free silica in large amounts. For example, sandstone, soapstone, and slate may contain asbestos. New York soapstone contains asbestos. The noise hazard from pneumatic tools can affect heart circulation, blood pressure, intestines, and balance.
Wood dusts can also cause serious lung problems very similar to pneumonia and fibrosis.
Highly toxic woods include the giant sequoia, cork oak, some maples, redwood, cedar, Ipe', and stave wood. Raynaud's Phenomenon - loss of sensation in the hand. More common than realized. Initially symptoms are temporary but can spread to the entire hand and cause permanent damage. Metalworking - Gold is the only safe metal to use.