The Durston Multi Clamp Bench Vice can be attached to your workbench in 2 different ways, the optional clamp allows you to attach and remove the vice with ease giving great versatility or you can bolt the vice directly to your worktop using the 3 mounting holes. This Vice will clamp to worktops up to 3.5″ in thickness. The anvil platform is built into the vice for comfortable shaping or hammering of your pieces. The cast iron body gives you strength and stability. The powder coat finish ensures a durable and long service life.