3-Flute, Coolant-Through, Variable Index, Un-Coated
3CV
High‑Precision, Coolant‑Through Design for Slotting & Plunge Milling Aluminum, Brass & Plastics
| Cut Diameter | Cut Length 2.5×D | Shank Diameter | Overall Length | Square | Radius 0.1 / .005" | Radius 0.2 / .010" | Radius 0.3 / .015" | |
|---|---|---|---|---|---|---|---|---|
| mm | in | Coolant Through – Un-Coated | ||||||
| 0.50 | 0.0197 | 1.25 | 4 | 55 | 3050250-C | – | – | – |
| 0.60 | 0.0236 | 1.50 | 4 | 55 | 3060250-C | – | – | – |
| 0.70 | 0.0276 | 1.75 | 4 | 55 | 3070250-C | – | – | – |
| 0.79* | 0.0313 | 1.98 | 4 | 55 | 3079250-C | – | – | – |
| 0.80 | 0.0315 | 2.00 | 4 | 55 | 3080250-C | – | – | – |
| 0.90 | 0.0354 | 2.25 | 4 | 55 | 3090250-C | – | – | – |
| 1.00 | 0.0394 | 2.50 | 4 | 55 | 3100250-C | 3100251-C | – | – |
| 1.10 | 0.0433 | 2.75 | 5 | 55 | 3110250-C | 3110251-C | – | – |
| 1.19* | 0.0469 | 2.98 | 5 | 55 | 3119250-C | 31192513-C† | – | – |
| 1.20 | 0.0472 | 3.00 | 5 | 55 | 3120250-C | 3120251-C | – | – |
| 1.30 | 0.0512 | 3.25 | 5 | 55 | 3130250-C | 3130251-C | – | – |
| 1.40 | 0.0551 | 3.50 | 5 | 55 | 3140250-C | 3140251-C | – | – |
| 1.50 | 0.0591 | 3.75 | 5 | 55 | 3150250-C | 3150251-C | – | – |
| 1.59* | 0.0625 | 4.00 | 5 | 55 | 3159250-C | 31592513-C | – | – |
| 1.70 | 0.0669 | 4.25 | 5 | 55 | 3170250-C | 3170251-C | – | – |
| 1.80 | 0.0709 | 4.50 | 5 | 55 | 3180250-C | 3180251-C | – | – |
| 1.90 | 0.0748 | 4.75 | 5 | 55 | 3190250-C | 3190251-C | – | – |
| 1.98* | 0.0781 | 4.95 | 5 | 55 | 3198250-C | 31982513-C† | – | – |
| 2.00 | 0.0787 | 5.00 | 5 | 55 | 3200250-C | 3200251-C | 3200252-C | – |
| 2.10 | 0.0827 | 5.25 | 6 | 55 | 3210250-C | 3210251-C | 3210252-C | – |
| 2.20 | 0.0866 | 5.50 | 6 | 55 | 3220250-C | 3220251-C | 3220252-C | – |
| 2.30 | 0.0906 | 5.75 | 6 | 55 | 3230250-C | 3230251-C | 3230252-C | – |
| 2.38* | 0.0938 | 5.95 | 6 | 55 | 3238250-C | 32382513-C† | 32382525-C† | – |
| 2.40 | 0.0945 | 6.00 | 6 | 55 | 3240250-C | 3240251-C | 3240252-C | – |
| 2.50 | 0.0984 | 6.25 | 6 | 55 | 3250250-C | 3250251-C | 3250252-C | – |
| 2.60 | 0.1024 | 6.50 | 6 | 55 | 3260250-C | 3260251-C | 3260252-C | – |
| 2.70 | 0.1063 | 6.75 | 6 | 55 | 3270250-C | 3270251-C | 3270252-C | – |
| 2.78* | 0.1094 | 6.95 | 6 | 55 | 3278250-C | 32782513-C† | 32782525-C† | – |
| 2.80 | 0.1102 | 7.00 | 6 | 55 | 3280250-C | 3280251-C | 3280252-C | – |
| 2.90 | 0.1142 | 7.25 | 6 | 55 | 3290250-C | 3290251-C | 3290252-C | – |
| 3.00 | 0.1181 | 7.50 | 6 | 55 | 3300250-C | 3300251-C | 3300252-C | 3300253-C |
| 3.10 | 0.1220 | 7.75 | 6 | 55 | 3310250-C | 3310251-C | 3310252-C | 3310253-C |
| 3.17* | 0.1250 | 7.93 | 6 | 55 | 3317250-C | 33172513-C | 33172525-C | 33172538-C |
| P | ○ |
|---|---|
| M | ○ |
| K | ○ |
| N | ● |
| S | ○ |
| H | ○ |
* Inch sizes (1/32, 3/64, 1/16, 5/64, 3/32, 7/64 and 1/8 in) use inch corner radii: .005" (0.13 mm), .010" (0.25 mm) and .015" (0.38 mm).
† Made to order, not stocked. Allow 14–20 business days.
Key Features
- Coolant-through shank: delivers coolant to the cutting edge, reducing heat and improving chip evacuation.
- High-polish flutes: minimize material bonding for exceptional chip forming in aluminum and plastic.
- New flute geometry: allows increased feed rates and reduced cycle times.
- 3-flute design: built for slotting, dynamic milling and large step-over milling.
- Premium carbide: for rigidity and long tool life.
Applications & Benefits
Applications
Full slotting, dynamic milling, large step-over milling, plunge milling, pocketing and high-speed finishing.
Ideal Materials
Aluminum alloys, brass, copper, plastics and other non-ferrous materials.
Performance Benefits
- Excellent chip evacuation
- Superior surface finish
- Higher feed rates and shorter cycle times
Speeds & Feeds
Recommended starting parameters. Feed per tooth is shown in mm, with inches in parentheses.
For other diameters: Feed / Tooth (mm) = Cut Diameter (mm) × Multiplication Factor
3CV // OPEN SLOTS
| Material Guide | Hardness | WOC | M/Min | SFM | DOC 2.5xD LOC | DOC 5.0xD LOC | Feed / Tooth mm (in) by cut diameter | Multiplication Factor | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.5(0.0197) | 1.0(0.0394) | 1.5(0.0591) | 2.0(0.0787) | 2.5(0.0984) | 3.0(0.1181) | ||||||||||
| N | ALUMINUM ALLOYS | 6061, 7075, A380 | < 15 HRC | 1xD | 213 | 700 | 1.00xD | .50xD | 0.00595(0.00023) | 0.01189(0.00047) | 0.01784(0.00070) | 0.02378(0.00094) | 0.02973(0.00117) | 0.03567(0.00140) | 0.011890 |
| COPPER ALLOYS | C10100, C28000 | ||||||||||||||
3CV // DYNAMIC ROUGHING
| Material Guide | Hardness | WOC MAX | M/Min | SFM | DOC 2.5xD LOC | Feed / Tooth mm (in) by cut diameter | Multiplication Factor | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.5(0.0197) | 1.0(0.0394) | 1.5(0.0591) | 2.0(0.0787) | 2.5(0.0984) | 3.0(0.1181) | |||||||||
| N | ALUMINUM ALLOYS | 6061, 7075, A380 | < 15 HRC | .30xD | 244 | 800 | 2.00xD | 0.00889(0.00035) | 0.01778(0.00070) | 0.02667(0.00105) | 0.03556(0.00140) | 0.04445(0.00175) | 0.05334(0.00210) | 0.017780 |
| COPPER ALLOYS | C10100, C28000 | |||||||||||||
3CV // FINISHING
| Material Guide | Hardness | WOC MAX | M/Min | SFM | DOC 2.5xD LOC | Feed / Tooth mm (in) by cut diameter | Multiplication Factor | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.5(0.0197) | 1.0(0.0394) | 1.5(0.0591) | 2.0(0.0787) | 2.5(0.0984) | 3.0(0.1181) | |||||||||
| N | ALUMINUM ALLOYS | 6061, 7075, A380 | < 15 HRC | .01xD | 244 | 800 | 2.00xD | 0.00508(0.00020) | 0.01016(0.00040) | 0.01524(0.00060) | 0.02032(0.00080) | 0.02540(0.00100) | 0.03048(0.00120) | 0.010160 |
| COPPER ALLOYS | C10100, C28000 | |||||||||||||