Pye Tools Pvt. Ltd. Manufactures External Circlip Pliers with Thick Insulation. Pye Tools Pvt. Ltd is an ISO 9001: 2000 certified company. The Company also manufactures various types of hand and garden tools. The External Circlip Pliers with Thick Insulation are used to put ring on an outer surface of a pipe. The External Circlip Pliers with Thick Insulation are drop- forged from high grade chrome vanadium steel and thereafter machined and heat treated in state of the art manufacturing environment. These Circlip Pliers have tips which are heat-treated ensuring long-lasting durability. These Circlip Pliers are also thickly insulated with scientifically designed, easy-to-hold sleeves made out of cellulose acetate. These Pliers are available in various models.