- Some BEVEL undercutting at the edges of all dimensions will occur. This BEVEL is approximately 20% of material thickness when etching the sheet from 2 sides.
- Hole size generally cannot be less than material thickness.
- Outside radius corners are sharper than inside corners.
- Inside radius corners are usually limited to one half the material thickness.
MATERIALS COMMONLY USED:
- Aluminum, Beryllium Copper, Brass, Copper alloys Nickel Silver, Phosphorous Bronze, Stainless Steel, Steel.
- Material thicknesses usually within a range of .0005" to .060"
| Hole Sizes | ||
| MATERIAL THICKNESS | MINIMUM HOLE DIAMETER | TOLERANCE ± | 
| .001"-.005" | Material thickness | .001 | 
| .006"-.010" | Min. 110% of material thickness | .0015 | 
| .010" and thicker | Min. 125% of material thickness | .002 | 
| MINIMUM MATERIAL BETWEEN PARTS | |
| MATERIAL THICKNESS | SIZE OF MATERIAL WEB | 
| Less Than .005" | Minimum of thickness of material. | 
| Over .005" | 125% Thickness of material. | 
