Thread Cutting: Lead Angle & Shim Selection - WIDIA Engineering Calculators
These calculations are based upon theoretical values and are only intended for planning purposes. Actual results will vary. No responsibility from Kennametal is assumed.
Selection of SHIMs |
|
|---|
feed direction towards the chuck (standard helix )
To determine catalog number replace (*) asterisk with the number 3 or 4. (3 = 3/8 I.C. or 4 = 1/2 I.C.)
0° to 1° = SMYI*1N1° to 2° = SMYI*2° to 3° = SMYI*1P3° to 4° = SMYI*2P | 0° to 1° = SMYE*1N1° to 2° = SMYE*2° to 3° = SMYE*1P3° to 4° = SMYE*2P | 0° to 1° = SMYE*1N1° to 2° = SMYE*2° to 3° = SMYE*1P3° to 4° = SMYE*2P | 0° to 1° = SMYI*1N1° to 2° = SMYI*2° to 3° = SMYI*1P3° to 4° = SMYI*2P |
|---|---|---|---|
 |  |  |  |
0° to -1° = SMYI*2N-1° to 2° = SMYI*3N | 0° to -1° = SMYE*2N-1° to 2° = SMYE*3N | 0° to -1° = SMYE*2N-1° to 2° = SMYE*3N | 0° to -1° = SMYI*2N-1° to 2° = SMYI*3N |
|---|---|---|---|
 |  |  |  |