Blade Size Chart
Choose the blade that best suits the thickness of the material being cut (or sawn). The ideal ratio is 2.5 to 3 teeth on the materials at any time. I have added a MM size comparison to this. Use a B and S gauge to determine the thickness if you need to. Now I would also caution against listening too close to others when they say you MUST use a particular size blade on certain gauges of metal. Depending on your job, and your personal taste, you may use a different blade size than others.
As long as you have at least 2.5 to 3 teeth on the metal, you can use what ever blade you would like.
Also. Remember to use some sort of blade lubricant!
| Blade Size | For use with: | Blade Thickness | Blade Depth | Teeth per Inch | Drill Size for Piercing |
|---|---|---|---|---|---|
| 6/0 | 24 gauge | .0070'' | .0140'' | 76.0 | 79 |
| 5/0 | 22-24 gauge | .0080'' | .0157'' | 71.0 | 78 |
| 4/0 | 22 gauge | .0086'' | .0175'' | 66.0 | 77 |
| 3/0 | 22 gauge | .0095'' | .0190'' | 61.0 | 76 |
| 2/0 | 20-22 gauge | .0103'' | .0204'' | 56.0 | 75 |
| 1/0 | 18-22 gauge | .0110'' | .0220'' | 53.5 | 73 |
| 1 | 18-20 gauge | .0120'' | .0240'' | 51.0 | 71 |
| 2 | 16-18 gauge | .0134'' | .0276'' | 43.0 | 70 |
| 3 | 12-14 gauge | .0140'' | .0290'' | 40.5 | 68 |
| 4 | 10 gauge | .0150'' | .0307'' | 38.0 | 67 |
| 5 | 8 gauge | .0158'' | .0331'' | 35.5 | 65 |
| 6 | 6-8 gauge | .0173'' | .0370'' | 33.0 | 58 |