Designed to use with round and hex shank tool bodies, our product is a true cost saving system; Unlike traditional heat tape anchoring systems, our clamps can be reused and/or repositioned anytime, protecting workers from tools dropped at height. Features an additional rubber insert for extra sizing capabilities and increase clamping grip; The clamps can be securely mounted and used in both extreme cold and high head applications making them durable, long lasting and reusable. Subjected to an extreme and rigorous series of tests at CSA's lab to ensure maximum peace-of-mind & safety; The system not only offers the most secure & unique tool attachment product, but also the strongest clamping mechanism on the market. Clamps are specifically designed to prevent tools from falling through commonly used 19-4 construction site grating; Available in individual blister packs.