Fillister Head
Mod 303- HSS 2 Flute Solid Pilot Straight Shank Counterbores
For Fillister Head Screws
Tool Material: HSS M2
Provides good wear resistance in mild steels and nonferrous materials such as plastics, aluminum, copper, brass and bronze
| Module # | Size | Shk. | Pilot | OAL | Morse | Number |
| Dia. | Shk. | Taper | of Flutes | |||
| 311 | 1/4 | 15/64 | 3/32 | 3-13/16 | 1MT | 3 |
| 311 | 5/16 | 19/64 | 3/32 | 3-13/16 | 1MT | 3 |
| 311 | 3/8 | 5/16 | 5/32 | 4-1/16 | 1MT | 3 |
| 311 | 7/16 | 3/8 | 5/32 | 4-1/16 | 1MT | 3 |
| 311 | 1/2 | 7/16 | 3/16 | 4-5/16 | 1MT | 3 |
| 311 | 9/16 | 1/2 | 3/16 | 4-5/16 | 1MT | 3 |
| 311 | 5/8 | 1/2 | 3/16 | 5-1/8 | 2MT | 3 |
| 311 | 11/16 | 1/2 | 3/16 | 5-1/8 | 2MT | 3 |
| 311 | 3/4 | 1/2 | 1/4 | 5-3/8 | 2MT | 3 |
| 311 | 13/16 | 5/8 | 1/4 | 5-3/8 | 2MT | 3 |
| 311 | 7/8 | 3/4 | 1/4 | 5-3/8 | 2MT | 3 |
| 311 | 15/16 | 3/4 | 1/4 | 6-1/8 | 3MT | 3 |
| 311 | 1 | 3/4 | 5/16 | 6-3/8 | 3MT | 3 |
| 311 | 1-1/16 | 3/4 | 5/16 | 6-3/8 | 3MT | 3 |
| 311 | 1-1/8 | 1 | 5/16 | 6-3/8 | 3MT | 3 |
| 311 | 1-3/16 | 1 | 5/16 | 6-3/8 | 3MT | 3 |
| 311 | 1-1/4 | 1 | 3/8 | 6-5/8 | 3MT | 4 |
| 311 | 1-5/16 | 1 | 3/8 | 6-5/8 | 3MT | 4 |
| 311 | 1-3/8 | 1 | 3/8 | 6-5/8 | 3MT | 4 |
| 311 | 1-7/16 | 1-1/4 | 3/8 | 7-7/8 | 4MT | 4 |
| 311 | 1-1/2 | 1-1/4 | 3/8 | 7-7/8 | 4MT | 4 |
| 311 | 1-9/16 | 1-1/4 | 7/16 | 8-1/8 | 4MT | 4 |
| 311 | 1-5/8 | 1-1/4 | 7/16 | 8-1/8 | 4MT | 4 |