Hydraulic jacks and screw jacks serve the same basic purpose, allowing mechanics to lift and support heavy loads in the shop. That said, there are some pretty major differences in how they work, the ...

The ActionJac line of worm-gear screw jacks consists of machinescrew, ball-screw, stainless-steel, metric, and trapezoidal screw jack options. Used individually or in multiple arrangements The ...

A magnetic sensor turned out to be a useful replacement for a simple limit switch that prevented overtravel in screw jacks. ActionJacs made by Nook Industries in Cleveland, Ohio, once incorporated ...

The ActionJac line of bevel gear screw jack systems is offered from Nook Industries, innovator of linear motion components and systems. Available in many configurations, this line offers customers ...

These are our top picks for the best hand tools, including screwdriver, socket, and wrench sets, all-in-one tool kits, and construction jacks. Men’s Journal aims to feature only the best products and ...