Made of stress-relieved cast iron for maximum stability
Cored and ribbed for increased rigidity and reduced weight
Essentially in reconditioning shops and for certain specific applications in tool roomsUse for setting up and leveling machinery and equipment and for checking the flatness of surfaces or scribing

Also can be used for positioning work above and parallel to a surface
Precision ground
Different size is available
Specification:

mm	straighness			parallelism			verticality
	Accuracy Classum
	0	1	2	0	1	2	0	1	2
500×35	3	6	12	4.5	9	18	15	30	60
750×40	4	8	15	6	12	25	20	40	80
1000×50	5	10	20	7.5	15	30	25	50	100
1500×70	7.4	15	30	10	20	40	37	75	150
2000×90	9	18	36	13.5	27	54	45	90	180
2500×90	11	22	44	16	32	65	55	110	220
3000×100	13	26	52	19.5	39	78	65	130	260
3500×100	15	30	60	22	45	90	75	150	300
4000×100	17	34	68	25	50	100	85	170	340
5000×110	21	42	84	30	60	120	105	210	420