Ceramic Insert Description Page Positive 11°, round v-bottom 1000 RPGX ceramic inserts Square ceramic inserts 1000 SNGA Square ceramic inserts, no hole 1001 SNGN Square ceramic inserts, dimple style 1002 SNGX Square ceramic inserts, pressed to size 1002 SNMG CE Positive 11° clearance square 1003 SPG ceramic inserts Triangle ceramic inserts 1003 TNGA Triangle ceramic inserts, no hole 1004 TNGN Triangle ceramic inserts, pressed to size 1004 TNMG CE Positive 11° triangle ceramic inserts 1005 TPG 35° rhombic ceramic inserts 1005 VNGA 35° rhombic ceramic inserts, 1006 VNGX dimple style 890