These concentric chucks, remarkable for their gripping power and adaptability, are designed to deal with all
concentric work and every type of irregular work within the capacity of the respective sizes. The advantages
offered by these chucks are:

* High ratio of gearing used ensures maximum gripping power
* Strength of the chuck is due to the fact that there are no jaw slots running through the periphery of the chuck.
Scrolls and pinions are made of special chrome nickel steel and heat-treated. The collar screws holding the
sector plates to the body are of hardened steel and take all the bursting stress at the face of the chuck. The solid
rim of the chuck body prevents outward movement of the sector plate and the large dowels prevent the
angular movement.
* Durability is attained by the use of the highest grade of materials, correct heat treatment and refinements in
design.
* Accuracy is based on the hardened and ground surface of the scroll and sliding shoes operating the jaw
carriers. Accurate location of jaws on the jaw carriers is assured by precision machining of the serration on
mating surfaces.

By removing the jaws, the chuck body can also be used as a faceplate.