"THOR" WITH CHAIN * Body: monoblock, in special cemented and hardened steel. * Finish: chemical nickel plating "NIPLOY PROCESS" anti-spraying. * Closing rod: anti-cutting rotary, Diameter Ø 13 mm., in cemented and hardened steel. Handle with section designed with programmed breakage, to prevent the rod from tearing. * Safety cylinder: 6 pistons, replaceable, protected da rotating plate against break-in and drill, in special cemented and hardened steel 4.4 mm. * Keys: classical key nickel-plated brass; 2 supplied. * Mechanism: - positive closure; - removable key only with closed lock; - first set of pistons and counter-pistons in hardened stainless steel; - brass pistons; - "mushroom" brass counterpistoncini, against the action of the grimaldello; - AISI 316 stainless steel latch; - stainless steel piston springs; - stainless steel latch spring. * Chain: hexagonal (to counteract le manual cutting machines that generally have sharp blades suitable for retaining round profiles) in special steel (nickel-chromium-molybdenum) cemented, hardened, found and galvanized with the last elongated mesh ("noose" rings). The chain has section 13 mm. and is covered da black protective sheath, in fabric that minimizes the footprint and scratch-proof.