The Loc-Line coolant hose assembly pliers are made of blue acetal copolymer plastic, and are for assembly and disassembly of Loc-Line modular coolant hose. The acetal copolymer plastic resists corrosion and moisture, and helps reduce the risk of damage to Loc-Line hose during work. The material complies with Registration, Evaluation, Authorization of Chemicals (REACH) and Restriction of the Use of Certain Hazardous Substances (RoHS) international directives for hazardous materials.Lockwood Products manufactures the Loc-Line modular hose system of low-pressure hose and couplings used for coolant, air delivery, smoke and dust removal, and other applications. The company, founded in 1981, is headquartered in Lake Oswego, OR.