General description This aluminum alloy door handle lock is designed for use in bedrooms, cloakrooms, storage rooms, and offices. It features a round design and is suitable for both internal and external doors where key access and security are required. Technical specifications Material: aluminum alloy Cylinder material: brass Round hole diameter: 50-62 mm Adjustable latch sizes: 60 mm or 70 mm Suitable for door thickness: 35 mm to 45 mm Usage This door lock can be locked from the inside or outside. When bolted inside, it can be unlocked with a key from the outside.