Technical Information for Turning Tiny Tool H Turning tiny tool code system Main code Insert size Type of Hand of Process Thread Cutting edge Carbide Grades operation Insert Depth Figure Profile Main Code Insert Size Type of operation B = Boring BP =Profiling & Boring BB = Back Boring BF = Chamfering 010: 1.0 mm 015: 1.5mm 020: 2.0mm BT =FaceCuting BC = Copying 030: 3.0 mm 040: 4.0 mm 050: 5.0mm TT = Tiny Tool BW = Chamfering & Profiling G = Square Grooving 060: 6.0 mm 070: 7.0 mm 080: 8.0mm GR = Round Grooving GF =Face Grooving 100: 10.0mm 0 XX: Special size GRF =Round Face Grooving T = Threading TD = Threading Relief Hand of Insert Process Figure Boring : Nose radius Grooving: Grooving width Threading : Partial profile : F60 05 : 5.0mm 10: 10.0 mm 15: 15.0 mm A 60 or A 55 R = Right hand style AG60 or Ag55 20: 20.0 mm 25: 25.0mm 30: 30.0 mm 214 L = Left hand style Full profile: ISO Metric 35 : 35.0 mm American UN TarpezDIN 103 ACME Thread Profile Cutting Edge Carbide Grades ISO - ISO Metric UN - American UN ( UNC, UNF, UNEF, UNS ) None:Single ended 2:Double ended TTIP 30 TTIM45 TTIS30 ACME - ACME TR - Tarpez DIN 103