Place the steel wedge

Provision for bolt and nut

Place the crowbar for lifting

Position the roller for moving

To move easily

To lift easily

To lower easily

To raise easily

Testing parallelism

Testing straightness

Testing concentricity

Testing eccentricity

White cast iron

Tool steel

High carbon steel

Stress free cast iron or steel

1:2:4

2:1:4

4:2:1

4:1:2