1.By the compactness comes from “ Light, Thin, Short, Small” designing concept; the chucks are most fitting to hold work pieces for measuring.
2.Just rotate the chuck knob directly for gripping and loosening, A handle is not necessary to be used.
3.Chuck body is made of very durable steel.
4.Jaws can be reversibly used; gripping of various sizes becomes much convenient.
5.2" chucks can even grip up to the smallest size of 0.8mm.