Technical Information for Thread Milling Technical Information for Thread Milling Thread Milling Holders code system Thread Milling Inserts code system Clamping Method Hand Cutting Dia . Length of Holder Cutting edge Length Shank Type Number of Inserts Clamping Method Hand Cutting Dia . Length of Holder Cutting edge Length Clamping Method e B Hand e Cutting Diameter 0025 m Cutting edge Length Omm Type of Insert Pitch HEffl S : Screw only R : right hand 0025= 25mm 1212.0mm 1414.0mm 2121.0mm E : External I : Internal mm : 0.5 - 6.0 TPI 48 - 6 L: left hand 30 30.0mm 40 40.0mm El: External & Interna o Length of Holder IS © Cutting edge Length HI o Shank Type 0 Standard sag e Carbide Grades IMEM 12 12.0mm 14 14.0mm 21 21.0mm Non : steel shank ISO - ISO Metric FHJKMSR TTIP30 TTIM45 30 30.0mm 40 40.0mm C : carbide shank UN - American UN (UNO, UNF, UNEF, UNS) W - Whit Worth (BSW, BSF, BSP, BSB) e Number of Insert 0 NPT - National Pipe Thread NPTF - National Pipe Thread BSPT - British Standard Pipe Thread (BSPT) Non : 1 insert 2: 2 inserts 075 076 Thread Milling Cutters code system Clamping Method Hand Cutting Dia . Tool Length Cutting edge Length Number of Inserts Bore Dia Clamping Method o Hand e Cutting Diameter S : Screw only R : right hand 0063 = 63 mm L: left hand o Tool Length e e Cutting edge Length HI o Number of Insert S 1212.0mm 1414.0mm 2121.0mm 3 : 3 Inserts 4: 4 Inserts CDE 30 30.0mm 40 40.0mm 5 : 5 Inserts o Bore Diameter Eg 22=22.0 mm 27 =27.0 mm 32= 32.0 mm