Technical Details

Linear Tolerances
Nominal size	D1 Tolerance	D2 Tolerance
mm	(general dimensions)	(some functional dimensions)
0 to 6	±0.15	±0.12
6 to 10	±0.18	±0.14
10 to 18	±0.22	±0.17
18 to 30	±0.26	±0.20
30 to 50	±0.40	±0.31
50 to 80	±0.45	±0.37
80 to 120	±0.55	±0.44
120 to 180	±0.8	0 ±0.65
180 to 250	±1.20	±0.95
250 to 315	±1.30	±1.10
315 to 400	±1.80	±1.40

Tolerance for angle values and right angles
Precision class	Nominal dimensions
	to 30 mm	30 to 100 mm	100 to 200mm	up to 200mm
D1	allowed deviation
minute degree	30	30	30	20
mm / 100 mm	0.87	0.87	0.87	0.58
D2	allowed deviation
minute degree	30	20	15	15
mm / 100 mm	0.87	0.58	0.44	0.44

Surface quality according to ISO R 468, DIN 4769 and VSM10321
	Ra	Rz	Rt
N9	6.3	23-32	25-38