Insert Grades & Screw Technical Data
Insert Grade Info.
| Insert Grade Selection | Spot Drill Insert Grade Selection | |||
| Material | Material Examples | Preferred Grades | Insert Grade | |
| High & Low Carbon Steels | 1018, 1020, 1117, 1141, 12L14 | K11 | All
Materials A1M |
|
| High Carbon & Alloy Steels | 1045, 4140, 4340, 52100, 8620 | K11 | ||
| Lower Carbon Tool Steels | P-20, H-13, S-7 | K11 | ||
| Tool Steels | A-2, A-6, D-2, M-2 | K11 | ||
| Stainless Steels | 303, 304, 316, 420, 15-5PH, 17-4PH | K11 | ||
| Iron | Cast | D66 / k11 | ||
| Iron | Ductile, Nodular | K11 | ||
| Nickel & Titanium Alloys | Inconel, Hastelloy, TI-6AL-4V | K11 | ||
| Non-Ferrous Metals | Aluminum, Bronze, Brass | K22 / B1M / K11 | ||
- To get the optimum life out of your inserts and maximize the efficiency of your cutter contact K-Tool, Inc. Tech Support for specific speed & feed recommendations based on your application.
- Phone#: 800-377-3056
- E-Mail: info@ktoolinc.com
Insert Screw Information
- Insert screws are a very important part of the performance of indexable cutting tools.Insert screws are also the most overlooked when the tool or insert performance drops off. Worn or damaged screws can cause the inserts to seat incorrectly in the pocket. This condition can cause vibration, chatter, incorrect cutting diameters, poor finish, insert failure or even tool failure.
Important: Apply anti-seize to the screw threads and the bottom of the screw head
| Insert Screw Specifications | ||||
| Screw # | Thread | Wrench | Recommended Screw Torque |
Max Screw Torque |
| 164T | 1 - 64 | T-6 | 2.7 - 3.3 In. Lb. | 5.5 In. Lb. |
| 300T | 3 - 48 | T-8 | 5.7 - 6.8 In. Lb. | 11.3 In. Lb. |
| 314T | 3 - 48 | T-8 | 5.7 - 6.8 In. Lb. | 11.3 In. Lb. |
| 414T | 4 - 40 | T-10 | 10 - 11.9 In. Lb. | 19.9 In. Lb. |
| 438T | 4 - 40 | T-10 | 10 - 11.9 In. Lb. | 19.9 In. Lb. |
| 538T | 5 - 40 | T-10 | 10 - 11.9 In. Lb. | 19.9 In. Lb. |
| 560T | 5 - 40 | T-10 | 10 - 11.9 In. Lb. | 19.9 In. Lb. |
| 5625T | 5 - 40 | T-10 | 10 - 11.9 In. Lb. | 19.9 In. Lb. |
| 614T | 6 - 32 | T-15 | 15.3 - 18.3 In. Lb. | 30.5 In. Lb. |
| 638T | 6 - 32 | T-15 | 15.3 - 18.3 In. Lb. | 30.5 In. Lb. |
| 838T | 8 - 32 | T-20 | 22.8 - 27.4 In. Lb. | 45.6 In. Lb. |
| 1012T | 10 - 32 | T-25 | 33.6 - 40.4 In. Lb. | 67.3 In. Lb. |
| 1412T | 1/4 - 28 | 5/32 Allen | 77.4 - 92.9 In. Lb. | 154.9 In. Lb. |
