ISO-13399 Definitions
| Symbol | Definition |
| ALP | Clearance angle axial |
| ANN | Clearance angle minor |
| APMX | Depth of cut maximum |
| B | Shank width |
| BAWS | Body angle workpiece side |
| BBD | Balanced by design |
| BBR | Balanced by rotational test |
| BD | Body diameter |
| BHTA | Body half taper angle |
| BS | Wiper edge length |
| BSG | Basic standard group |
| CDX | Cutting depth maximum |
| CHW | Corner chamfer width |
| CICT | Cutting item count |
| CND | Coolant entry diameter |
| CNSC | Coolant entry style code |
| COATING | Coating |
| CNT | Coolant entry thread size |
| CP | Coolant pressure |
| CRKS | Connection retention knob thread size |
| CTPT | Operation type |
| CUTDIA | Work piece parting diameter maximum |
| CW | Cutting width |
| CWTOLL | Cutting width lower tolerance |
| CWTOLU | Cutting width upper tolerance |
| CXSC | Coolant exit style code |
| CZC | Connection size code |
| CZC MS | Connection size code machine side |
| CZC WS | Connection size code workpiece side |
| DAH | Diameter access hole |
| DAXIN | Axial groove inside diameter minimum |
| DAXX | Axial groove outside diameter maximum |
| DBC | Diameter bolt circle |
| DC | Cutting diameter |
| DCB | Connection bore diameter |
| DCBN | Connection bore diameter minimum |
| DCBX | Connection bore diameter maximum |
| DCF | Cutting diameter face contact |
| DCON | Connection diameter |
| DCSFMS | Contact surface diameter machine side |
| DCSFWS | Contact surface diameter workpiece side |
| DCX | Maximum cutting diameter |
| DIX | Tool changer interference diameter maximum |
| DMIN | Minimum bore diameter |
| DMM | Shank diameter |
| DN | Neck diameter |
| DSGN | Design |
| D1 | Fixing hole diameter |
| FHA | Flute helix angle |
| FLGT | Flange thickness |
| FTDZ | For thread diameter size |
| H | Shank height |
| HF | Functional height |
| HRY | Lowest point from reference plain |
| HTB | Body height |
| HTH | Height |
| IC | Inscribed circle diameter |
| INSL | Insert length |
| IZC | Insert size code |
| KAPR | Tool cutting edge angle |
| KCH | Corner chamfer |
| L | Cutting edge length |
| LB | Body length |
| LCF | Length chip flute |
| LE | Cutting edge effective length |
| LF | Functional length |
| LGR | Regrind length |
| LH | Head length |
| LPR | Protruding length |
| LS | Shank length |
| LSC | Clamping length |
| LSCN | Clamping length minimum |
| LSCX | Clamping length maximum |
| LSD | Dead shank length |
| LU | Usable length (max. recommended) |
| MHD | Mounting hole distance |
| MIID | Master insert identification |
| MMCC | Code for preset torque |
| NOF | Flute count |
| OAH | Overall height |
| OAL | Overall length |
| OAW | Overall width |
| OHN | Overhang minimum |
| OHX | Overhang maximum |
| PHD | Premachined hole diameter |
| PHDX | Premachined hole diameter maximum |
| PL | Point length |
| PRFRAD | Profile radius |
| PRSPC | Profile specification |
| PSIR | Tool lead angle |
| PSIRL | Cutting edge angle major left hand |
| PSIRR | Cutting edge angle major right hand |
| RADH | Radial body height |
| RADW | Radial body width |
| RE | Corner radius |
| RETOLL | Corner radius lower tolerance |
| RETOLU | Corner radius upper tolerance |
| RPMX | Rotational speed maximum |
| S | Insert thickness |
| SDL | Step diameter length |
| SIG | Point angle |
| SSC | Insert seat size code |
| SUBSTRATE | Substrate |
| TCDC | Tolerance class cutting diameter |
| TCDMM | Shank diameter tolerance |
| TCHA | Achievable hole tolerance |
| TCT | Tolerance class tool |
| TCTR | Thread tolerance class |
| TD | Thread diameter |
| TDZ | Thread diameter size |
| TFLA | Tap floating length ahead |
| TFLB | Tap floating length behind |
| THCHT | Threading chamfer type |
| THFT | Form type |
| THLGTH | Thread length |
| THUB | Hub thickness |
| TP | Thread pitch |
| TPI | Threads per inch |
| TPIN | Threads per inch minimum |
| TPIX | Threads per inch maximum |
| TPN | Thread pitch minimum |
| TPX | Thread pitch maximum |
| TQ | Torque |
| TSYC | Tool style code |
| ULDR | Usable length diameter ratio |
| WB | Body width |
| WF | Functional width |
| WSC | Clamping width |
| WT | Weight of item |
| W1 | Insert width |
| ZEFF | Face effective cutting edge count |
| ZEFP | Peripheral effective cutting edge count |
| ZWX | Number of Wiper inserts maximum |
| MILLING SPECIFIC | |
| Symbol | Definition |
| ae | Radial depth of cut |
| ap | Axial depth of cut |
| DCap | Cutting diameter at cutting depth ap |
| Dm | Machined diameter (component diameter) |
| fz | Feed per tooth |
| fn | Feed per revolution |
| n | Spindle speed |
| vc | Cutting speed |
| ve | Effective cutting speed |
| vf | Table feed |
| zc | Number of effective teeth |
| hex | Maximum chip thickness |
| hm | Average chip thickness |
| kc | Specific cutting force |
| Pc | Net power |
| Mc | Torque |