| UNDERSTANDING GWS NOMENCLATURE |
| Part numbers are composed of letters and numerals referring to different categories (where applicable), as seen in the following examples. |
|---|
SERIES | PITCH | LOC | SHANK | #FLUTE | CUTTING DIA.* | COATING |
|---|---|---|---|---|---|---|
A G W (30 DEGREE HELIX) (NON-FERROUS) |
S (STUB) |
4 (4) |
0 5 0 0 (1/2 INCH) |
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A G S (30 DEGREE HELIX) (COBB STYLE) |
S (STUB) |
3 (3) |
1 0 0 0 (1 INCH) |
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G W (30 DEGREE HELIX) (GENERAL PURPOSE) |
XL (X-TRA LONG) |
2 (2) |
0 7 5 0 (3/4 INCH) |
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B N A (37 DEGREE HELIX) (BALL NOSE) |
L (LONG) |
S U (UNDERCUT) |
3 (3) |
0 6 2 5 (5/8 INCH) |
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S G W (VARIABLE HELIX) |
L (LONG) |
S U |
4 (4) |
0 2 5 0 (1/4 INCH) |
-X (VARIOUS) |
|
G S C (20 DEGREE HELIX) (HOGMILL-ROUGHER) |
M (MEDIUM) |
L (LONG) |
S U |
4 (4) |
0 3 7 5 (3/8 INCH) |
|
*Note: In most cases, the listed cutting diameter will be equal to the corresponding shank diameter, although there will be some exceptions. |
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