Soft Jaws-1.5mm*60 Degree-Standard Type The soft jaws is used in CNC Lathe. To suit Kitagawa Chuck and other popular chucks. Available in Steel(S45C),Aluminum(6061 T6) and POM Serration Pitch : 1.5mm*60 Degree, 3.0mm*60 Degree, 1/16"*90 Degree.