RCGX-CERAMIC : Positive Round ground Ceramic inserts with 7° clearance angle with V shape bottom for nickel based super alloys & hardened steels machining
* Marked for 'RCGX 251200 U3'
This is the only item with a 140° bottom
  DesignationdtGICATGIREMgiicTough ‹————› Hard
Grade
  RCGX 060600 T6 6.356.355703854 1TC430 
  RCGX 060600 U1 6.356.355701750 1AB30 
  RCGX 090700 E 9.527.946182034 2TC3020 TC3030 
  RCGX 090700 T2 9.527.945700432 1AB30 
  RCGX 090700 T6 9.527.946151102 3TC3020 TC3030 TC430 
  RCGX 090700 U1 9.527.945700434 2AB30 AB20 
  RCGX 120700 12.707.946342625 1AB30 
  RCGX 120700 E 12.707.946182039 2TC3020 TC3030 
  RCGX 120700 T6 12.707.946182037 3TC3020 TC3030 TC430 
  RCGX 120700 U2 12.707.945703511 3TC430 AB30 AB20 
  RCGX 151000 U2 15.8810.305700443 2AB30 AB20 
  RCGX 191000 U2 19.0510.305700446 2AB30 AB20 
  RCGX 251200 U3 25.0012.306185129 2AB30 AB20 

E : Honing without T-land
T2: Land 0.10 x 30°
T6: Land 0.10 x 20°
U1: 1st Land 0.7 x 15° & 2nd Land 0.15 x 30°
U2: 1st Land 1.5 x 15° & 2nd Land 0.15-0.2 x 30°
U3: 1st Land 2.0 x 15° & 2nd Land 0.20 x 30°