General tolerances

For linear and angular dimensions

The following table describes permissible machining variation, wherever not specified, as per IS:2102-1993
Part 1.

Linear Dimensions	.	Fine	Medium	Coarse	Very Coarse
0.5 - 3*		ą0.05	ą0.1	ą0.2	-
> 3 - 6		ą0.05	ą0.1	ą0.3	ą0.5
> 6 - 30		ą0.10	ą0.2	ą0.5	ą1.0
>30 - 120		ą0.15	ą0.3	ą0.8	ą1.5
>120 - 400		ą0.20	ą0.5	ą1.2	ą2.5
> 400 - 1000		ą0.30	ą0.8	ą2.0	ą4.0
> 1000 - 2000		ą0.50	ą1.2	ą3.0	ą6.0
> 2000 - 4000		-	ą2.0	ą4.0	ą8.0
External Radii and Chamfer Heights
0.5 - 3*		ą0.2	ą0.2	ą0.4	ą0.4
> 3 - 6		ą0.5	ą0.5	ą1.0	ą1.0
> 6		ą1.0	ą1.0	ą2.0	ą2.0
Angular Dimensions
Length of Shorter Side Tolerance
up to 10		ą1⁰	ą1⁰	ą1⁰ 30'	ą3⁰
> 10 - 50		ą0⁰ 30'	ą0⁰ 30'	ą1⁰	ą2⁰
> 50 - 120		ą0⁰ 20'	ą0⁰ 20'	ą0⁰ 30'	ą1⁰
> 120 - 400		ą0⁰ 10'	ą0⁰ 10'	ą0⁰ 15'	ą0⁰ 30'
> 400		ą0⁰ 5'	ą0⁰ 5'	ą0⁰ 10'	ą0⁰ 20'

Values specified are in mm.
* For nominal sizes below 0.5 mm, the deviation shall be indicated adjacent to the relevant nominal size (s)

Diameter range in mm	For shafts				For Holes
Diameter range in mm	h₅	h₆	h₉	h₁₁	H₆	H₇	H₈	H₁₁
3	0 -4	0 -6	0 -25	0 -60	+6 0	+10 0	+14 0	+60 0
> 3 to 6	0 -5	0 -8	0 -30	0 -75	+8 0	+12 0	+18 0	+75 0
> 6 to 10	0 -6	0 -9	0 -36	0 -90	+9 0	+15 0	+22 0	+90 0
> 10 to 18	0 -8	0 -11	0 -43	0 -110	+11 0	+18 0	+27 0	+110 0
> 18 to 30	0 -9	0 -13	0 -52	0 -130	+13 0	+21 0	+33 0	+130 0
> 30 to 50	0 -11	0 -16	0 -62	0 -160	+16 0	+25 0	+39 0	+160 0
> 50 to 80	0 -13	0 -19	0 -74	0 -190	+19 0	+30 0	+46 0	+190 0
> 80 to 120	0 -15	0 -22	0 -87	0 -220	+22 0	+35 0	+54 0	+220 0
> 120 to180	0 -18	0 -25	0 -100	0 -250	+25 0	+40 0	+63 0	+250 0
> 180 to 250	0 -20	0 -29	0 -115	0 -290	+29 0	+46 0	+72 0	+290 0
> 250 to 315	0 -23	0 -32	0 -130	0 -320	+32 0	+52 0	+81 0	+320 0
> 315 to 400	0 -25	0 -36	0 -140	0 -360	+36 0	+57 0	+89 0	+360 0
>400 to 500	0 -27	0 -40	0 -155	0 -400	+40 0	+63 0	+97 0	+400 0