
if activating heat is not properly controlled.
| cuttin | metr g tool shank dia | ic (ISO standa meters | rd) | tolerance | cutti cuttin | ngtool shank dia inch ( g tool shank dia | meters industry standard meters | tolerance ) tolerance |
| 3mm | 2,997 | 3,000 | h4 | 0.000/-0.003 | 1/8 | .1249 | .1247 | -0.0001/-0.0003 |
| 4mm | 3,996 | 4,000 | h4 | 0.000/-0.004 | 3/16 | .1874 | .1872 | -0.0001/-0.0003 |
| 5mm | 4,995 | 5,000 | h5 | 0.000/-0.005 | 1/4 | .2499 | .2496 | -0.0001/-0.0004 |
| 6mm | 5,992 | 6,000 | 0.000/-0.008 | 5/16 | .3124 | .3121 | -0.0001/-0.0004 | |
| 8mm | 7,991 | 8,000 | 0.000/-0.009 | 3/8 | .3749 | .3746 | -0.0001/-0.0004 | |
| 10mm | 9,991 | 10,000 | 0.000/-0.009 | 7/16 | .4375 | .4371 | 0.0000/-0.0004 | |
| 12mm | 11,989 | 12,000 | 0.000/-0.011 | 1/2 | .5000 | .4996 | 0.0000/-0.0004 | |
| 14mm | 13,989 | 14,000 | 0.000/-0.011 | 9/16 | .5625 | .5621 | 0.0000/-0.0004 | |
| 16mm | 15,989 | 16,000 | 0.000/-0.011 | 5/8 | .6250 | .6246 | 0.0000/-0.0004 | |
| 18mm | 17,989 | 18,000 | h6 | 0.000/-0.011 | 11/16 | .6875 | .6871 | 0.0000/-0.0004 |
| 20mm | 19,987 | 20,000 | 0.000/-0.013 | 3/4 | .7500 | .7495 | 0.0000/-0.0005 | |
| 25mm | 24,987 | 25,000 | 0.000/-0.013 | 7/8 | .8750 | .8745 | 0.0000/-0.0005 | |
| 32mm | 31,984 | 32,000 | 0.000/-0.016 | 1 | 1.0000 | .9995 | 0.0000/-0.0005 | |
| 40mm | 39,984 | 40,000 | 0.000/-0.016 | 1-1/4 | 1.2500 | 1.2495 | 0.0000/-0.0005 | |
| 50mm | 49,984 | 50,000 | 0.000/-0.003 | 1-1/2 | 1.5000 | 1.4995 | 0.0000/-0.0005 | |
| 2 | 2.0000 | 1.9995 | 0.0000/-0.0005 |