(521.100)-Lock-Grip Sliding Jaw Pliers-Quick Clamp-4" (Facom)

Heavy Duty Quick-Grip Clamping Pliers with Sliding Jaw -4" (521.100) - zinc plated forged and hardened sliding jaw opens to 100mm (4"). Adjustable clamping force (4000nm). Lower jaw angle screw-adjustable through 9° (to regulate the parallelism between the 2 jaws). Chrome finish.

I use these a lot in the shop securing objects to my workbench for drilling, soldering, welding, etc. They are much stronger than the plastic tipped pliers from Vice Grip. Only 2 left. Facom has discontinued the 521.100 (4") and 521.150 (6") models.