This small circle adaptor allows a 50 mm diameter test to be performed. By removing the cover ring, the adaptor is a simple screw fitting to the main ballbar body. Supplied with an additional center ball already fitted.
(A-8014-1560) Small Circle Adaptor (small circle accessory kit)
Portable Laser Measurement and Calibration | QC20-W Ballbar System Spare Parts| Small Circle Adaptor