Threading Holders for Oil Pipe Ordering Code System Threading Holders for Oil Pipe Ordering Code System Conventional Tooholders Code System Multi-Clamping Tooholders Code System HT N F A F HT N M S 15 B F 48 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 A series of code Holder Type Direction of clamping Pipe Size Shank Style Height of shank Insert height of shank A seriesof code HolderTypeClamping Methodof InsertInsert ShapeLength of InsertCutting EdgePipe SizeShank StyleHeight ofshank Insert heightof shank A series of code Holder Type Direction of Clamping A series of code Holder Type Clamping Method of Insert HT N F HT N M HT series: applicable to RB series inserts PP series: applicable to BB series inserts M: Top and hole, clamping Z1 series: applicable to RT17 series insertsZ3 series: applicable to RT12 series insertsW: ExternalTR series: applicable to RT series insertsN: InternalF: Reversed ClampingNone: Front ClampingHT series: applicable to RB series inserts W: External (Multi clamp, pin and clamp)PP series: applicable to BB series insertsN: InternalP: Hole clamping (Pin lock) LP series: applicable to VBT series inserts S: Screw on CT series: applicable to RL series inserts Application Range Shanak Style Height of Shank Insert Shape Length of Insert Cutting Edge Application Range A F 48 S 15 B ABC D F: Squre Shank The height of square shankY: Round ShankThe diameter of round shank C.D.V S ABCD I I Insert height of Shank V T 32 Shanak Style Height of Shank Insert height of Shank The insert height of square shank F The length of round shank 48 32 F: Squre Shank The height of square shank The insert height of square shank Y: Round Shank The diameter of round shank The length of round shank