Used with the SQUARE-line vacuum measuring saddle and a reference angle made of hard natural stone, highly precise right-angularity measurements can be carried out.
Application: The measuring saddle is positioned at the reference angle. The SA-50 air preparation unit generates the required vacuum. The vacuum draws the SQUARE-line against the reference angle so hard that it does not slip down but can still be moved easily by hand. The 8 mm holes are used to hold various touch probes, e.g. dial test indicators (from 124210).
Package contents: Delivered complete, including air preparation unit SA-50, spiral hose, air hose (3 m) and operating instructions, without dial gauge.