General description The Master Lock Excell 4-Digit Black Finish Combination Padlock MLKM178 is designed for high security with a durable zinc body and a boron carbide shackle that is resistant to cutting and sawing. This padlock is suitable for various applications including securing storage units, sheds, workshops, lockers, trailers, and outdoor use. It features a weather-resistant design with a covered dial and sealed shackle, making it ideal for outdoor conditions. The lock allows you to set your own 4-digit combination, eliminating the need for keys and providing up to 10,000 possible combinations. Technical specifications Body Width: 50mm Shackle Diameter: 9mm Shackle Height: 28mm Shackle Width: 24mm Material: Zinc body and boron carbide shackle Security level: 9 Color: Black Installation No installation is required; simply set your preferred 4-digit combination and lock or unlock as needed. Usage Set your own 4-digit code for secure access. Use to lock storage units, sheds,