Inspection fastening bracket

for measuring right angles90°

To be used for simple but accurate inspections of angles 90° at co-ordinate measuring machines and machine tools Design / Working Selected base material of black natural hardstone finest diabas. The 4 narrow outside-faces - precision faces - are finest ground and lapped. Both flat-sides in frame design are finely worked. Including a recess for an efficient weight reduction. Containing an additional cross-tie from frame size 600 X 400 mm onwards. Accuracy / Precision grade JFA accuracy 'I+' or 'I++' >4-sides precise. The 4 narrow angle faces 90° are flat, parallel and rectangular to each other finest ground and hand-lapped in the indicated JFA accuracy grade. >3-sides, 5-sides, 6-sides precise-worked version on request. Test certificate / Calibration certificate A test certificate is part of scope of delivery. The measuring results are retraceable to national standards. Factory calibration certificate or DAkkS calibration certificate on request and additional costs. Accessories Deliverable as accessories: >Storage box of wood in stabile construction, No. 53482. >Suspension device, No. 53480.