Rugged design and large workload capacity make these vises perfect for the most difficult drilling tapping or reaming operations. The 1300 series is made of graded cast iron and offers a ground vise bed for a smooth consistent jaw movement and hardened top U-groove jaws. The 1400 series is made of graded cast iron and features precision 90º machining of the vise's sidebodies which allows them to be used additionally as bases.