15 Vise Tool Block Clamshell Upper, Aluminum plated Polymer, Tight Fit, USA Made

UPPER 3.0 The first hybrid design allowing you to do everything you need at an affordable price. New design no longer touches the brass deflector while still having clearance for the larger dust covers. We precisely CNC mill each backing plate out of 6061 Aluminum, which is then fixed in place with steel screws that run the full length of the inside polymer to increase rigidity on the comers. This backing plate substantially increases strength while also offering a longer lasting wear surface for years of service.