Building construction machinery and equipment. Portable, hand-held, internal combustion engine-driven abrasive cutting machines. Safety requirements for cut-off machines for centre-mounted rotating abrasive wheels|Single-point cutting tools, Occupational safety, Safety measures, Internal combustion engines, Machine guards, Vibration hazards, Manually-operated devices, Control devices, Grinding wheels, Safety devices, Cutting tools, Noise (environmental), Construction equipment, Instructions for use, Portable machine tools, Parting tools, Parting-off wheels, Thermal protection, Equipment safety, Testing, Verification, Hazards, Sawing machines