| http://www.w3.org/ns/prov#value | - ower tools were off the chart,??? he says. ???The scale was 1 through 5, with 5 bordering on injuries to upper back, shoulder, elbow and other parts of the body.??? However, a lot of the tests that are done on power tools are based on an 8-hour day, Gutierrez says. ???You can get white knuckles if you use power tools for 8 straight hours,??? he says. ???No technician does that.
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