IMPORTANT: This upgrade is for pre-2017 Generation 3 Pro Sharpeners.
The Generation 3 Cam-Lock Vise with Tension Adjustment features the newest clamping technology from Wicked Edge. The jaws are free-floating and self-centering which make them ideal for clamping fully-flat-ground blades. This new 2017 model has slits in the jaws, which allow them to flex enough to grip distally-tapered blades. The tension adjustment allows you to add clamping tension for thinner knives. The Vise is fully enclosed to prevent diamond particles or metal shavings from damaging the cam.