Grade TB610 TB670 TB730 DNMA - LN/LS ANSI ISO Dimension (inches) DESIGNATION DESIGNATION l d t r D1 DNMA 431LN DNMA 150404 LN .165 .500 .187 .016 .203 DNMA 431LS2 DNMA 150404 LS2 .102 .500 .187 .016 .203 DNMA 431LS4 DNMA 150404 LS4 .102 .500 .187 .016 .203 DNMA 432LN DNMA 150408 LN .154 .500 .187 .031 .203 DNMA 432LS2 DNMA 150408 LS2 .102 .500 .187 .031 .203 DNMA 432LS4 DNMA 150408 LS4 .091 .500 .187 .031 .203 DNMA 433LN DNMA 150412 LN .138 .500 .187 .047 .203 DNMA 433LS2 DNMA 150412 LS2 .087 .500 .187 .047 .203 DNMA 433LS4 DNMA 150412 LS4 .087 .500 .187 .047 .203 DNMA 441LN DNMA 150604 LN .165 .500 .250 .016 .203 DNMA 441LS2 DNMA 150604 LS2 .102 .500 .250 .016 .203 DNMA 442LN DNMA 150608 LN .154 .500 .250 .031 .203 DNMA 442LS2 DNMA 150608 LS2 .091 .500 .250 .031 .203 DNMA 442LS4 DNMA 150608 LS4 .091 .500 .250 .031 .203 DNMA 443LS2 DNMA 150612 LS2 .087 .500 .250 .047 .203 LN - Insert with longer tip LS2 - Insert with 2 tips LS4 - Insert with 4 tips 115