1Made from high-quality aluminum alloy material, which makes it sturdy and durable to use 2360 degrees rotation, it can be used to set up the perfect angle on sheets of metal for your working. The maximal table clamping capacity is 53mm / 20.9inch, very easy to install it on the table or bench by screwing the screw 3You can use it as counterweights and it gives you a lot more precision when drilling holes through wood or metal 4Attach it to your craft table without worrying about scratches since it has rubber pads, and the ability to adjust the angle of the vise would be also really helpful and easy 5Perfect for holding 10mm electric hand drill, after using the included white inner gasket, it is also great for many other types of electric hand drill