Gurpreet Machine Tools Sultanwind, Amritsar, Punjab

These are special 2-Jaw Self Centring Chucks.These chucks usually have high height jaws with threaded holes. These jaws are kept soft so that machining or welding can be done on them. Special type of fixture can be mounted on the Jaws to suit special jobs.

These chucks are available with 3 jaws and 4 jaws and are refferd as STC-3 and STC-4 respectively. STC-3 chucks are most Popular.one set of reverse jaws, mounting bolts, operating keys is provided with each chuck.

These are capable of carrying heavy loads. The height of bodies though little more, but it helps not break under the loads.The diameter of screws is large enough to tolerate heavy cutting pressure and moreover large diameter of screws provide more contact area with thread of jaws. ACME threads of screws are very strong as the same have 29 degree taper. These do not break easily due to strength provided by large base of taper thread. Alloy steel having Nickel, Chromium and Molybdnem is used in the manufacture of Screws, Thrust Bearings and Operating Key which are heat-treated to obtain wear resistance and toughness.