Type 812 FractionalTools - Reamers - Solid Carbide Reamers - Material Specific Solid Carbide Reamers with Right Spiral Flutes
| Chip Class | Material Machined | Tool Type |
|---|---|---|
| 20 | CAST IRONS | 813 |
| 40 | LOW STRENGTH STEELS | 813 |
| 60 | MEDIUM STRENGTH STEELS | 812 |
| 80 | HIGH STRENGTH STEELS | 812 |
| 100 | HIGH TEMPERATURE ALLOYS | 812 |
| 120 | 812 | |
| 140 | 812 |
Description
- Solid carbide head and straight shank
- Tool diameter tolerance
thru .2500": plus .0002", minus .0000"
over .2500": plus .0003", minus .0000" - Shank diameter tolerance: plus .0000", minus .0010"
- Tool geometry appropriate for material being machined
Modifications
- Modified tool diameter - priced below
- Metric tool diameter
- Closer tool diameter tolerance
- Cutting diameter reduced for step or pilot
- End chamfer other than 45º
- End cutting or corner radius
- Increased / decreased circular margin
- Increased / decreased tool diameter back taper
- Shortened shank or reduced shank diameter
- Flat(s) or tang on shank
Coatings available:
- TITANIUM NITRIDE - TiN
- TITANIUM CARBONITRIDE - TiCN
- ZIRCONIUM NITRIDE - ZrN
- AL TITANIUM NITRIDE - AITiN
| Tool Diameter Range | Flute Length | Max Shank Diameter | Number Of Flutes | Overall Length | EDP | 0.4091 - 0.4410 | 1 3/8 | 0.4067 | 6 | 3 3/4 | 81228 | 0.4411 - 0.4720 | 1 1/2 | 0.4380 | 6 | 4 | 81230 | 0.4721 - 0.5150 | 1 1/2 | 0.4693 | 6 | 4 | 81232 | 0.2531 - 0.2840 | 1 1/8 | 0.2505 | 6 | 3 1/4 | 81218 | 0.2841 - 0.3150 | 1 1/8 | 0.2817 | 6 | 3 1/4 | 81220 | 0.3151 - 0.3470 | 1 1/4 | 0.3130 | 6 | 3 1/2 | 81222 | 0.3471 - 0.3780 | 1 1/4 | 0.3443 | 6 | 3 1/2 | 81224 | 0.3781 - 0.4090 | 1 3/8 | 0.3755 | 6 | 3 3/4 | 81226 | 0.1436 - 0.1590 | 3/4 | 0.1411 | 4 | 2 1/2 | 81210 | 0.1591 - 0.1750 | 7/8 | 0.1567 | 4 | 2 3/4 | 81211 | 0.1751 - 0.1910 | 7/8 | 0.1724 | 4 | 2 3/4 | 81212 | 0.1911 - 0.2210 | 1 | 0.1880 | 6 | 3 | 81214 | 0.2211 - 0.2530 | 1 | 0.2193 | 6 | 3 | 81216 | 0.0971 - 0.1120 | 5/8 | 0.0943 | 4 | 2 1/4 | 81207 | 0.1121 - 0.1280 | 5/8 | 0.1099 | 4 | 2 1/4 | 81208 | 0.1281 - 0.1435 | 3/4 | 0.1255 | 4 | 2 1/2 | 81209 |
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