Master Lock is synonymous with Innovation and seriously Tough security. Magnum padlocks feature, a patented Octagonal "Boron-Carbide" Shackle, Dual-Armor construction for superior rust protection, Professional- grade ball bearing locking for superior pull strength and pry resistance, Chisel resistant and recessed rivets. Magnum padlocks are twice as tough.
• Tough-Cut Octagonal Boron - Carbide shackle
• Dual-Armor laminated locks for strength and weather resistance
• Professional-grade ball bearings for superior pull strength
• Hinged dial cover and shackle seal offers superior weather protection
• Greater shackle clearance for improved utility
• Reinforced body bumpers for protection