4 JAW SELF CENTERING CHUCKS - 250MM Weight: 33kg Each chuck is supplied with 2 sets of jaws and chuck key. These Chucks are suitable for use on universal lathes and internal and external grinding machines etc. for clamping workpieces to perform various cutting operations. The jaws for clamping are constructed of quality steel and have been subjected to hardening treatment to ensure high wear and shock resistance. They are retentive of accuracy and durable in service. Each chuck comes with a technical accuracy test certification and instructions for use. ACCURACY REPORT