Type 512 FractionalTools - Counterbores - Straight Shank Counterbores - Counterbores with 4 Flutes for Non-Ferrous & Cast Iron
| Chip Class | Material Machined | Tool Type |
|---|---|---|
| 20 | NON-FERROUS - LONG CHIPS | 512 or 514 |
| 40 | NON-FERROUS - SHORT CHIPS | 512 or 514 |
| 60 | CAST IRONS | 512 or 514 |
| 80 | LOW STRENGTH STEELS | 510 |
| 100 | MEDIUM STRENGTH STEELS | 510 |
| 120 | HIGH STRENGTH STEELS | 510 |
| 140 | HIGH TEMPERATURE ALLOYS | 512 or 514 |
Description
- Right spiral flutes
- Carbide tips brazed to tough hardened alloy steel body
- Tool diameter tolerance: plus .001", minus .000"
- Shank diameter tolerance: plus .0000", minus .0005"
- Geometry and carbide grade appropriate for material being machined
- Carbide tips brazed to tough hardened alloy steel body
- Precision ground cutting edges
- USCTI
Modifications
- Modified tool diameter - priced below
- Cutting diameter reduced for step
- Corner chamfer or corner radius
- 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
| Decimal Diameter | Fractional Diameter | Minimum Cut Diameter | Number Of Flutes | Overall Length | Pilot Hole Diameter | Shank Diameter | EDP | Price | 1.0625 | 1 1/16 | 0.3530 | 4 | 6 3/8 | 5/16 | 3/4 | 51234 | $148.75 | 1.1250 | 1 1/8 | 0.3530 | 4 | 6 3/8 | 5/16 | 1 | 51236 | $152.70 | 1.1875 | 1 3/16 | 0.3530 | 4 | 6 3/8 | 5/16 | 1 | 51238 | $159.40 | 0.8750 | 7/8 | 0.2900 | 4 | 5 3/8 | 1/4 | 3/4 | 51228 | $140.25 | 0.9062 | 29/32 | 0.2900 | 4 | 6 1/8 | 1/4 | 3/4 | 51229 | $157.35 | 0.9375 | 15/16 | 0.2900 | 4 | 6 1/8 | 1/4 | 3/4 | 51230 | $143.15 | 0.9688 | 31/32 | 0.3530 | 4 | 6 3/8 | 5/16 | 3/4 | 51231 | $161.95 | 1.0000 | 1 | 0.3530 | 4 | 6 3/8 | 5/16 | 3/4 | 51232 | $147.20 | 0.7188 | 23/32 | 0.2900 | 4 | 5 3/8 | 1/4 | 1/2 | 51223 | $142.60 | 0.7500 | 3/4 | 0.2900 | 4 | 5 3/8 | 1/4 | 1/2 | 51224 | $129.55 | 0.7812 | 25/32 | 0.2900 | 4 | 5 3/8 | 1/4 | 5/8 | 51225 | $145.70 | 0.8125 | 13/16 | 0.2900 | 4 | 5 3/8 | 1/4 | 5/8 | 51226 | $132.30 | 0.8438 | 27/32 | 0.2900 | 4 | 5 3/8 | 1/4 | 3/4 | 51227 | $154.25 | 0.5625 | 9/16 | 0.2280 | 4 | 4 5/16 | 3/16 | 1/2 | 51218 | $118.50 | 0.5938 | 19/32 | 0.2280 | 4 | 5 1/8 | 3/16 | 1/2 | 51219 | $131.65 | 0.6250 | 5/8 | 0.2280 | 4 | 5 1/8 | 3/16 | 1/2 | 51220 | $119.70 | 0.6562 | 21/32 | 0.2280 | 4 | 5 1/8 | 3/16 | 1/2 | 51221 | $139.30 | 0.6875 | 11/16 | 0.2280 | 4 | 5 1/8 | 3/16 | 1/2 | 51222 | $126.70 | 0.5000 | 1/2 | 0.2280 | 4 | 4 5/16 | 3/16 | 7/16 | 51216 | $115.15 | 0.5312 | 17/32 | 0.2280 | 4 | 4 5/16 | 3/16 | 1/2 | 51217 | $130.25 |