The Cardellini 2C Center Jaw Clamp has the fixed jaw at the CENTER of the shaft, at the base of the baby pin. It requires a little more space to clamp on than the end jaw does, but it provides a more stable attachment because the load on the baby pin is always close to the jaws.
This clamp is less likely to rotate on smooth round tubing.
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.