Carr Lane Mfg. offers the most complete line of concentric clamping of any manufacturer. Concentric OD and ID power clamping is available from the ROEMHELD line of Power Workholding; including the most complete line of 5-Axis Vises. Made in the USA mechanical ID clamping is also available in a standard range of sizes. Regardless of your application, we have a solution. Please contact us for additional information.