Peakworks introduces a patented tool tethering system, designed to protect workers from tools dropped at height. Durable, long-lasting and temperature resistant, these unique tool anchor clamps are specifically designed to prevent tools from falling through commonly used 19-4 construction site grating. No other tool tethering system offers this added safety feature. Rigorously tested at the CSA test lab to ensure maximum safety, these high-strength clamp fasteners are easily installed and removed using the hex key wrench provided. Available in 4 sizes and designed for use with round and hex shank tool bodies.