Spec:

Features:
Good metal texture, comfortable surface, easy to clamp, so that the output torsion becomes larger.
The unique thrust bearing facilitates the application of torsion by the handle into a greater clamping force.
Clamping force of this self-tightening chuck would increase according to required force.
Keyless design, tightening and loosening is by hand force, which offers a quicker and easier chucking and unchucking.
Widely used with various drill machines, milling machines, lathes, boring lathes and electric hand tools.

Specifications:
Material: 45# steel
Chuck Capacity: 1-13mm(1/2) / 0.04-0.5in
Chuck Inner Diameter: Approx. 15.733mm / 0.6in
Chuck Out Diameter: Approx. 40mm / 1.57in
Chuck Length: Approx. 88mm / 3.46in
Arbor Type:

Package Includes:
1 x Chuck & Arbor

Note:
Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering