Saving Effort: You don't need to manually hold the electric drill anymore with this product, saving you lots of effort Good Stability: The solid bar and larger base (8.8*5.9*0.9inch) that can be fixed on the workbench with screws good stability without fear of shaking and tilting Firm Clamping: The clamping hole made of aluminium alloy and two plastic supplied reducing bushes with different sizes allow for firm clamping to accurate drilling and high safety Easy Assembly: The simple structure, complete accessories, and an English manual allow you to install it by a few simple steps Strong and : Made of high-quality aluminium alloy, it can resist wear, , and deformation, Weight: 3.527396192 Pounds, Manufacturer: Frewurwer