DIE CLEARANCE FOR MILD STEEL
Die Clearance
The relationship of the larger die hole size is die clearance and is stated as a percentage of the thickness of the material being punched. The range of clearances varies from 10% for thin materials to 2-% for thicker materials. For 3/4" material the total die clearance is .150".
| GAGE OR SIZE | APPROX. DEC. THICKNESS | OVERALL CLEARANCE |
| 30 | .0120 | Slip Fit |
| 28 | .0149 | Slip Fit |
| 26 | .0179 | Slip Fit |
| 24 | .0239 | .003 |
| 22 | .1299 | .003 |
| 20 | .0359 | .004 |
| 18 | .0478 | .005 |
| 16 | .0598 | .005 |
| 14 | .0747 | .006 |
| 13 | .0897 | .009 |
| 12 | .1046 | .009 |
| 11 | .1196 | .011 |
| 1/8" | .125 | .011 |
| 10 | .1345 | .013 |
| 5/32" | .156 | .015 |
| 8 | .164 | .017 |
| 7 | .1793 | .021 |
| 3/16" | .1875 | .023 |
| 1/4" | .250 | .037 |
| 5/16" | .3125 | .047 |
| 3/8" | .375 | .057 |
| 1/2" | .500 | .075 |
| 5/8" | .625 | .125 |
| 3/4" | .750 | .150 |
| NOTE: Most grades of half hard aluminum use the same clearance as shown above. In many cases, your own experience may dictate that you call for clearances different than the above, especially when punching other materials such as stainless. steels. |
| TO BUY BY CHECK |