| Type |
A - With hole
|
| B - With hole and one countersink |
| C - With hole and two countersinks |
| D - Smaller than 1/4 I.C. with hole |
| E - Smaller than 1/4 I.C. without hole |
| F - Clamp-on type with chipbreaker |
| G - With hole and chipbreaker |
| H - With hole, one countersink and chipbreaker |
| J - With hole, two countersinks and chipbreaker |
| *K - With hole, double sided, special 5° positive chipbreaker |
| *L - With hole, double sided, special 5° negative chipbreaker |
| M - With hole and special features on top rake surface only |
| *N - Narrow chipbreaker land both sides with hole |
| *O - Bumpy style chipbreaker both sides with hole |
| P - 10° positive chipbreaker both sides with hole |
| *Q - Double positive chipbreaker one side, with hole |
| R - Extra wide chipbreaker land both sides with hole |
| S - Double positive chipbreaker both sides with hole |
| T - With hole, one countersink |
| W - With hole, one countersink |
| X - Extra Wide chipbreaker groove both sides with hole |
| Y - High double positive chipbreaker one side with hole |
| Z - High positive chipbreaker both sides with hole |
*ANC Identification only |