Following are the Material & Features of Soft Jaw chucks :-
Body: High Tensile, wear resistant Cast Iron, ardness 180-200 Bhn. Integral Casted ribs adds to the life of body.
Jaw: Case hardenin steel having wide contact surfaces. Diamond cuts on holding faces provide extra grip on the job.
Screw & Lock: Case hardening alloy steel, Interchangeable.
These type of Soft Jaw chucks are most suitable for heavy duty gripping of jobs on Vertical Turning Lathes, Boring mills & face plates.