Adjustable to clamp on different thickness of wood boards from 17mm to 50mm, quick operation, simple and convenient.
High quality aluminum alloy 6061(drill guide) and die steel(bushing), high hardness and strength, good wear-resistant and durable to use. Please keep away from water and other humid environment during daily use. Keep dry during daily storage.
The unique design is wavy on both sides. It is not easy to slip.It is a great tool set for both furniture factory and woodworking enthusiasts.