.687 - .812 Diameter Flat Bottom Drills
Available in 2:1 & 3:1 Ratio
- - Cuts a flat bottom within .001
- - Coolant Thru - Side & Rear Ports
- - Helical flute design
- - Uses the same insert in both pockets
- - 4 cutting edges per insert
| Tool Info. .687 - .812 Dia. Flat Bottom Drill |
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| Tool # | D | Flutes | L | L-1 | D.O.C. | S | Coolant Plug | Insert | Screw | Wrench |
| FB-687 | .687 | 2-1 Effective | 4.250 | 2.250 | 1.375 | .750 | NPT 1/8 | SPEB-221CB | 314T | T-8 |
| FB-687-3 | .687 | 2-1 Effective | 4.937 | 2.937 | 2.062 | |||||
| FB-718 | .718 | 2-1 Effective | 4.250 | 2.250 | 1.437 | |||||
| FB-718-3 | .718 | 2-1 Effective | 5.062 | 3.062 | 2.187 | |||||
| FB-750 | .750 | 2-1 Effective | 4.750 | 2.500 | 1.500 | 1.000 | ||||
| FB-750-3 | .750 | 2-1 Effective | 5.500 | 3.250 | 2.250 | |||||
| FB-781 | .781 | 2-1 Effective | 4.750 | 2.500 | 1.562 | |||||
| FB-781-3 | .781 | 2-1 Effective | 5.500 | 3.250 | 2.343 | |||||
| FB-812 | .812 | 2-1 Effective | 4.750 | 2.500 | 1.625 | |||||
| FB-812-3 | .812 | 2-1 Effective | 5.625 | 3.375 | 2.437 | |||||
Insert Info.
| Insert Info. .687 - .812 Dia. Flat Bottom Drills |
|
| SPEB-221CB | |
| Grades | K11 / K22 |
| I.C. | .250 |
| T | .125 |
| R | .015 |
Technical Data
| Speed and Feed Info. .687 - .812 Dia. Flat Bottom Drill |
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| Material | S.F.M. | I.P.R. |
| Mild & Low Carbon Steel Ex. 1018, 1020, 1117, 1141, 12L14 |
800 - 1200 | .002 - .004 |
| High
Carbon & Alloy Steel Ex. 1045, 4140, 4340, 52100, 8620 |
500 - 800 | .002 - .003 |
| Lower
Carbon Tool Steel Ex. P-20, H-13, S-7 |
400 - 700 | .002 - .003 |
| Tool
Steel Ex. A-2, A-6, D-2, M-2 |
300 - 600 | .001 - .003 |
| Stainless
Steel Ex. 304, 316, 420, 15-5PH, 17-4PH |
300 - 600 | .001 - .003 |
| Iron Ex. Cast, Ductile, Nodular |
600 - 1000 | .002 - .005 |
| Nickel
& Titanium Alloy Ex. Inconel, Hastelloy, TI-6AL-4V |
120 - 180 | .001 - .002 |
| Non-Ferrous
Metal Ex. Aluminum, Bronze, Brass |
1000 - 2500 | .003 - .006 |
| Insert Info. .687 - .812 Dia. Flat Bottom Drills |
|
| SPEB-221CB | |
| Grades | K11 / K22 |
| I.C. | .250 |
| T | .125 |
| R | .015 |
| Insert Grade Description | |
| Grade | Description |
| K11 | Universal High Performance Dense Coating |
| K22 | Ultra Smooth Dense Coating - No Hone |
***Important***
- To maintain correct drill diameter in lathe applications
- indicate the drill to spindle center.
