Our front vise has a simple on-off cam lever to engage or disengage the Acme-threaded screw, allowing it to apply up to 400 lb of force in either clamping or spreading applications.
The screw mechanism provides 12 1/4" of overall travel (less the thickness of your wooden jaw and bench apron). Tight body tolerances result in minimal jaw sag, even at full extension. An extruded aluminum screw cover keeps debris out of the screw mechanism and prevents the workpiece from contacting the lubricated screw.
Straightforward to install in new construction or as a retrofit to an existing bench, the vise requires an unobstructed mounting area on the underside of the bench top at least 12" wide by 16" deep (with a 2" thick bench apron and a 1 3/4" thick jaw). The body is ductile iron with zinc-alloy endplates, steel shafts and guide rods, and a maple handle. Mounting instructions and hardware included. Made in Canada. Patented.
Optional top-grain leather jaw liners are available separately.