Widely used for many years on the world’s most popular manual lathes, the Pratt Burned Super Precision chuck is ideal for all high speed applications.

The body is made from high strength nodular iron with hardened and ground jaw strips for extended working life. Through the body mounting holes allow for easy fitting and a wide range of fully machined adaptor plates to suit most common spindle noses are readily available.

Exceeds ISO 3089: 1991 (E) Class l

¦ 30µm T.I.R. up to 250mm size, 315mm and above 50µm T.I.R. using
nominated pinion
¦ Repeatability 25µm on all sizes
¦ Three hardened pinions
¦ Complete with one of set each hard inside and hard outside jaws

We can supply soft blank jaws for all above models please ask for details