[*]This chart describes the 7 digit system we use to describe our inserts. Just click on any category to see a description and list of possible callouts.

[shape][clearance][tolerance][type][size][thickness][cutting point]

T | Triangle |

R | Round |

S | Square |

D | 55°Diamond |

C | 80°Diamond |

V | 35°Diamond |

L | Rectangle |

N | 0° |

A | 3° |

B | 5° |

C | 7° |

P | 11° |

D | 15° |

E | 20° |

F | 25° |

G | 30° |

A | I.C. ±.0002, thickness ±.001 |

B | I.C. ±.0002, thickness ±.005 |

C | I.C.t ±.0005, thickness ±.001 |

D | I.C. ±.0005, thickness ±.005 |

E | I.C. ±.001, thickness ±.001 |

G | I.C. ±.001, thickness ±.005 |

M | I.C. ±.002 to .005, thickness ±.005 |

U | I.C. ±.005 to ±.021, thickness ±.005 |

A | with hole |

B | with hole and one countersink |

C | with hole and two countersinks |

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 |

I.C. size 1/4" and over use (number of 1/8ths in size).

I.C. size under 1/4" use (number of 1/32nds" in size)

For a rectangle and a parallelogram use two digits (the number of 1/8ths" in width and 1/4ths" in length).

I.C. size 1/4" and over use (number of 1/16ths" in thickness).

I.C. size under 1/4" use (number of 1/32nds" in thickness)

0 | sharp corner |

1 | 1/64 radius |

2 | 1/32 radius |

3 | 3/64 radius |

4 | 1/16 radius |

6 | 3/32 radius |

8 | 1/8 radius |

A | square insert with 45° chamfer |