90° Spot Drills
Patent# 5,259,707
- - 2 Flutes Effective
- - Must be held in a Collet
| Tool Info. 90° Spot Drills |
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| Tool # | Min Dia. | Max Dia. | L | L-1 | S | D | Clamp | Screw | Insert |
| SDCS-90 | .070 | .390 | 3.250 | 2.500 | .375 | .430 | 180310 | 25618 | 90 |
| SDCS-900 | .093 | .470 | 3.250 | 2.375 | .500 | .625 | 311205 | 44025 | 900 |
| SDCS-901 | .156 | .600 | 3.060 | 2.000 | .500 | 1.000 | 501912 | 103212 | 901 |
| SDCS-901L | .156 | .600 | 5.330 | 4.250 | .750 | ||||
| SDCS-902 | .250 | .900 | 4.130 | 2.500 | .750 | 1.125 | 621915 | 103212 | 902 |
| SDCS-902L | .250 | .900 | 6.530 | 4.875 | 1.000 | ||||
| SDCS-9025 | .250 | 1.270 | 4.690 | 2.625 | 1.000 | 1.250 | 621915 | 103212 | 9025 |
| SDCS-903 | .375 | 1.560 | 4.880 | 2.625 | 1.000 | 1.700 | 102518 | 142812 | 903 |
Insert Info.
| Insert Info. 90° Spot Drills |
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| Insert | Grades | ||
| 90 | A1M | ||
| 900 | A1M | ||
| 901 | A1M | ||
| 901CB | A1M / B1M / CPM4 | ||
| 902 | A1M / B1M | ||
| 902CB | A1M / B1M / CPM4 | ||
| 9025 | A1M / B1M | ||
| 9025CB | A1M | ||
| 903 | A1M / B1M | ||
| 903CB | CPM4 | ||
Technical Data
Insert Loading Procedure
- Air Blast Pocket Clean
- Hold Insert in place (Chisel points to front & rear)
- - Flatted corners are to prevent loading insert backwards
- Tighten clamps until each one makes light contact
- Alternate tightening screws several times until screws are tight
| Speed and Feed
Info. Spot Drills |
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| Material | S.F.M. | I.P.R. |
| Mild & Low Carbon Steel Ex. 1018, 1020, 1117, 1141, 12L14 |
500 - 700 | .0024 |
| High
Carbon & Alloy Steel Ex. 1045, 4140, 4340, 52100, 8620 |
400 - 600 | .0016 |
| Lower
Carbon Tool Steel Ex. P-20, H-13, S-7 |
400 - 600 | .002 |
| Tool
Steel Ex. A-2, A-6, D-2, M-2 |
300 - 600 | .002 |
| Stainless
Steel Ex. 304, 316, 420, 15-5PH, 17-4PH |
200 - 400 | .0014 |
| Iron Ex. Cast, Ductile, Nodular |
400 - 700 | .004 |
| Nickel
& Titanium Alloy Ex. Inconel, Hastelloy, TI-6AL-4V |
120 - 250 | .0012 |
| Non-Ferrous
Metal Ex. Aluminum, Bronze, Brass |
1000 - 2000 | .006 |
| Insert Grade
Selection 90° Spot Drills |
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| Material | Material Examples | Preferred Grade |
| Mild & Low Carbon Steels | 1018, 1020, 1117, 1141, 12L14 | A1M |
| High Carbon & Alloy Steels | 1045, 4140, 4340, 52100, 8620 | A1M |
| Lower Carbon Tool Steels | P-20, H-13, S-7 | A1M |
| Tool Steels | A-2, A-6, D-2, M-2 | A1M |
| Stainless Steels | 303, 304, 316, 420, 15-5PH, 17-4PH | A1M |
| Iron | Cast, Ductile, Nodular | A1M |
| Nickel & Titanium Alloys | Inconel, Hastelloy, TI-6AL-4V | A1M |
| Non-Ferrous Metals | Aluminum, Bronze, Brass | A1M / B1M |
| Insert Grade Description
90° Spot Drills |
|
| Grade | Description |
| A1M | Tin Coated |
| B1M | Uncoated Carbide - No Hone |
| CPM4 | High Speed Steel Insert |
