IS Fits for Basic Hole System - (IS : 919-1963 & IS : 2709-1964)
Deviations in m (1m = 0.001mm).
Diameter step
in mm		 Hole Shafts Hole Shafts
Over to H6 f6 g5 h5 j5 k5 m5 H7 f7 g6 h6 j6 k6 m6 n6
0 3 +6 -6 -2 0 +2 +4 +6 +10 -6 -2 0 +4 +6 +8 +10
0 -22 -6 -4 -2 0 +2 0 -16 -8 -6 -2 0 +4 +4
 
3 6 +8 -10 -4 0 +3 +6 +9 +12 -10 -4 0 +6 +9 +12 +16
0 -18 -9 -5 -2 +1 +4 0 -22 -12 -8 -2 +1 +4 +8
 
6 10 +9 -13 -5 0 +4 +7 +12 +15 -13 -5 0 +7 +10 +15 +19
0 -22 -11 -6 -2 +1 +6 0 -28 -14 -0 -2 +1 +6 +10
 
10 14 +11 -16 -6 0 +5 +9 +15 +18 -16 -6 -0 +8 +12 +18 +23
14 18 0 -27 -14 -8 -3 +1 +7 0 -34 -17 -11 -3 +1 +7 +12
 
18 24 +13 -20 -7 0 +5 +11 +17 +21 -20 -7 0 +9 +15 +21 +28
24 30 0 -33 -16 -9 -4 +2 +8 0 -41 -20 -13 -4 +2 +8 +15
 
30 40 +16 -25 -9 0 +6 +13 +20 +25 -25 -9 0 +11 +18 +25 +33
40 50 0 -41 -20 -11 -5 +2 +9 0 -50 -25 -16 -5 +2 +9 +17
 
50 65 +19 -30 -10 0 +6 +15 +24 +30 -30 -10 0 +12 +21 +30 +39
65 80 0 -49 -23 -13 -7 +2 +11 0 -60 -29 -19 -7 +2 +11 +20
 
80 100 +22 -36 -12 0 +6 +18 +28 +35 -36 -12 0 +13 +25 +35 +45
100 120 0 -58 -27 -15 -9 +3 +13 0 -71 -34 -22 -9 +3 +13 +30
 
120 140 +25 -43 -14 0 +7 +21 +33 +40 -43 -14 0 +14 +28 +40 +52
140 160 0 -68 -32 -18 -11 +3 +15 0 -83 -39 -25 -11 +3 +15 +27
160 180
 
180 220 +29 -50 -15 0 +7 +24 +37 +46 -15 -50 0 +16 +33 +46 +60
200 225 0 -79 -35 -20 -13 -4 +17 0 -44 -96 -29 -13 +4 +17 +31
225 250
 
250 280 +32 -56 -17 0 +7 +27 +43 +52 -56 -17 0 +16 +36 +52 +66
280 315 0 -88 -40 -23 -16 +4 +20 +0 -108 -49 -32 -16 +4 +20 +32
 
315 255 +36 -62 -18 0 +7 +29 +46 +57 -62 -18 0 +18 +40 +57 +73
355 400 0 -98 -43 -25 -18 +4 +21 0 -119 -54 -36 -18 +4 +21 +37
 
400 450 +40 -68 -20 0 +7 +32 +50 +63 -68 -20 0 +20 +45 +63 +80
450 500 0 -108 -47 -27 -20 +5 +23 0 -131 -60 -40 -20 +5 +23 +40