GCodeTutor

1 Calculations 1/64 to 1 1 1/64 to 2 2 1/64 to 3 Screw Thread Charts Metric Coarse Thread Metric Fine Thread BSW British Standard Whitworth Thread BSF British Standard Fine Thread BA British Association Screw Thread BSPP British Standard Pipe parallel BSPT British Standard pipe Taper UNC Unified Coarse Thread UNF Unified Fine Thread UNEF Unified Extra Fine Thread Reamer Drill SizeAbbreviationsCNC Programming Reference G Code M Code Auxiliary CommandsG Code Canned Cycles - Turning G70 Finishing G71 Roughing G72 Facing G73 Pattern Repeating G74 Peck Drilling G75 Peck Grooving G76 Screw Cutting Single Line G76 Screw Cutting Double Line G83 Z-axis Peck Drilling G84 Z-axis Tapping G87 X-axis Peck Drilling G88 X-axis TappingG Code Canned Cycles - Milling G81 Drilling G82 Counter bore G83 Peck Drilling G84 Tapping G85 Bore in / Bore out G86 Bore in / Rapid outCalculations Speeds and Feeds Tapping Drill TrigonometryTrigonometry ChartsTool Geometry RH Knife Tool Drill Centre Drill End Mill Morse TaperAfterwordMachinists ChartsMachinists CalculationsLengthKilometers (km) (mi)Miles (mi) (km)Kilometers (km) (ft)Feet (ft) (km)Meters (m) (ft)Feet (ft) (m)Centimeters (cm) (in)Inches (in) (cm)Millimeters (mm) (in)Inches (in) (mm)Meters (m) (in)Inches (in) (m)Meters (m) (yd)Yards (yd) (m)Kilometers (km) (yd)Yards (yd) (km)

2 VolumeLiters (l) (qt)Quarts (qt) (l)Liters (l) (gal)Gallons (gal) (l)Milliliters (ml) (c)Cups (c) (ml)Milliliters (ml) (oz)Ounces (oz) (ml)MassKilogram (kg) (ton)Tons (ton) (kg)Kilogram (kg) (lb)Pounds (lb) (kg)Grams (g) (oz)Ounces (oz) (g)Grams (g) (lb)Pounds (lb) (g)Milligrams (mg) (oz)Ounces (oz)x28350=Milligrams (mg)TemperatureFahrenheit (F)(Temperature (F) 32)*5/9 Celsius (C)Celsius (C)(Temperature (C)*9/5) + 32 Fahrenheit (F)Machinists conversion conversion ChartFractionDecimalmm1 1 1 3 1 5 3 7 1 9 5 11 3 13 7 15 1 17 9 19 5 21 11 23 3 25 13 27 7 29 15 31 1 33 17 35 9 conversion ChartsMeasurement conversion ChartFractionDecimalmm1 37 19 39 5 41 21 43 11 45 23 47 3 49 25 51 13 53 27 55 7 57 29 59 15 61 31 63 conversion ChartFractionDecimalmm2 1 1 3 1 5 3 7 1 9 5 11 3 13 7 15 1 17 9 19 5 21 11 23 3 25 13 27 7 29 15 31 1 33 17 35 9 conversion ChartFractionDecimalmm2 37 19 39 5 41 21 43 11 45 23 47 3 49 25 51 13 53 27 55 7 57 29 59 15 61 31 63 conversion ChartsMachinists Thread

3 ChartsMachinists Coarse Thread ChartNominalSizeISOM inor DiameterMajor DiameterThread HeightPitchPitch DiameterTap Drill in mm unless otherwise statedMetric Coarse Thread ChartMachinists Fine Thread ChartNominalSizeISOM inor Diameter Major DiameterThread Height PitchPitch Diameter Tap Drill in mm unless otherwise statedMetric Fine Thread ChartMachinists BSW British Standard Whitworth Thread ChartFractionSizeMinorDiameterMajorDiame terThreadHeightPitchThreadsper inch(TPI)Tap DrillDiameter1/16" " " " " " " " " " " " " " " " 1/8" 1/4" 3/8" 1/2" 5/8" 3/4" 7/8" 1 " 1 1/4" 1/2" 3/4" 1 " 1/2683 1/4" 1 1/2" 1/4803 3/4" " 1/4" 7/8984 1/2" 7 3/4" 3/41105" 3 1/4" 5 1/2" 5 3/4" 1 " 1/2141 Dimensions in mm unless otherwise statedBSW British Standard Whitworth Thread ChartMachinists BSF British Standard Fine Thread ChartNominalSizeMinorDiameterMajorDiamet erThreadHeightPitchThreadsper inch(TPI)

4 Tap DrillDiameter3/16" " " " " " " " " " " " " " " 1/8" 1/4" 3/8" 1/2" 5/8" 3/4" " 1/4" 1/2" 3/4" " in mm unless otherwise statedBSF British Standard Fine Thread ChartMachinists British Association Thread ChartBA British Association Screw Thread ChartNominalSizeMinorDiameterMajorDiamet erThreadHeightPitchThreadsper inch(TPI)Tap DrillDiameterNo. in mm unless otherwise statedMachinists Briitish Standard Pipe Parallel Thread ChartFractionSizeMinorDiameterMajorDiame terThreadHeightPitchThreadsper inch(TPI)Tap DrillDiameter1/16" " " " " " " " " 1/8" 1/4" 1/2" 3/4" " 1/4" 1/2" 3/4" " 1/2" " 1/2" " 1/2" " in mm unless otherwise statedBSPP British Standard Pipe Parallel Thread ChartMachinists Briitish Standard Pipe Taper Thread ChartFractionSizeMinorDiameterMajorDiame terThreadHeightPitchEffectiveThreadLengt hThreadsper inch(TPI)

5 Tap DrillDiameter1/16" " " " " " " 1/4" 1/2" " 1/2" " " " " in mm unless otherwise statedBSPT British Standard Pipe Taper Thread ChartMachinists Unified Coarse Thread ChartNominalDiameter(Inch)MajorDiameter( Inch)MajorDiameterPitchThreadsper inch(TPI)Tap DrillDiameter1 - 64 - 56 - 48 - 40 - 40 - 32 - 32 - 24 - 24 " - 20 " - 18 " - 16 " - 14 " - 13 " - 12 " - 11 " - 10 " - 9 " - 8 1/8" - 7 1/4" - 7 3/8" - 6 1/2" - 6 3/4" - 5 " - 4 1/2 1/4" - 4 1/2 1/2" - 4 3/4" - 4 " - 4 1/4" - 4 1/2" - 4 3/4" - 4 " - 4 in mm unless otherwise statedUNC Unified Coarse Thread ChartMachinists Unified Fine Thread ChartNominalDiameter(Inch)MajorDiameter( Inch)MajorDiameterPitchThreadsper inch(TPI)Tap DrillDiameter0 - - - - - - - - - - " - " - " - " - " - " - " - " - " - " - 1/8" - 1/4" - 3/8" - 1/2" - in mm unless otherwise statedUNF Unified Fine Thread ChartMachinists (F 8niIied ([tra Fine Thread Chart1ominalDiameter(Inch)MajorDiameter( Inch)MajorDiameterPitchThreadsper inch(TPI)Tap DrillDiameter12 - " - " - " - " - " - " - " - " - " - " - " - " - " - 1/16" - 1/8" - 1/4" - 5/16" - 3/8" - 7/16" - 1/2" - 9/16" - 5/8" - 11/16" - in mm unless otherwise statedUNEF Unified Extra Fine Thread ChartMachinists Size (mm)Drill Size (mm)))]

6 Drill SizeMachinists cornersAFacross flatsAFFabove finished floorAISIA merican Iron and Steel InstituteAl or ALaluminiumALYalloyAMERA mericanAMSA erospace Material StandardsAN-Army-NavyANNanneal, annealedANSIA merican National Standards InstituteAPPROX approximatelyAQLacceptable quality levelARas requiredASAerospace Standards; Australian StandardsAPSapproved product supplierAPVapproved product vendorASAA merican Standards AssociationASMEA merican Society of Mechanical EngineersASSY or ASYassemblyASTMA merican Society for Testing and MaterialsAVGaverageAWGA merican Wire GaugeBASIC basic dimensionBC or circleBHCS button head cap screwBHNB rinell hardness numberBoM or BOMbill of materialsBoP or BOPbought out partBP, B/PblueprintBRZbronzeBSCbasic dimensionCADcomputer-aided designCAGEC ommercial and Government EntityC-C or C-TO-Ccentre-to-centre.

7 On centresCBNcubic boron nitrideCDAcurrent design activityCERT or certcertificationCGcenterless ground, centerless grindingCHchamferCHAM chamferCIcast ironMachinists or center lineCNCcomputer numerical controlCRcontrolled radiusCRES corrosion-resistantCRScold rolled steel; on centresC/TCorrelation / TrackingC'BORE or CBORE counterboreCSK or CSINK countersinkCTN, ctncarton diameterDdiameter; deltaDIAdiameterDIPductile iron pipeDIMdimension, dimensioningDO, dodittoDOD, DoD[ ] Department of DefenseDPDdigital product definitionDWG, dwgdrawingEDedge distanceEO, ECO, ECNengineering orderEQequal, equallyERCelectrical rule checkffinishFAOfinish all overFCFfeature control frameFD or F/Dfield of the drawingFIMfull indicator movementFLflag note, flagnoteFLFloor LevelFN or F/Nflag note, flagnote.

8 Find numberFoSfeature of sizeFSfar sideFSCMF ederal Stock/Supply Code for ManufacturersFTGfittingGCIgray cast ironGD&T or GDTgeometric dimensioning and tolerancingGN or G/Ngeneral noteHBWhardness, Brinell, tungsten tipHHCShex head cap screwHRAhardness, Rockwell, A scaleHRBhardness, Rockwell, B scaleHRChardness, Rockwell, C scaleMachinists , Rockwell, C scaleHRShot rolled steelHT TRheat treat, heat treatmentH&T or H/T or HThardened and temperedIAWin accordance withIDinner diameter; identity, identification numberIEDI nsufficient Edge DistanceISOI nternational Organization for StandardizationKEYkeyKPSI, kpsikilopounds per square inchKSI, ksikilopounds per square inchLDDL imited Dimension DrawingLHleft-handLM or L/Mlist of materialsLMCleast material conditionMACH machine; machinedMAJmajorMAXmaximumMBDmodel-based definitionMBPmeasurement between pinsMBWmeasurement between wiresMF or M/Fmake fromMFDmanufacturedMFGmanufacturingMFRma nufacturerMIL-[ ] MilitaryMINminimum; minutes.

9 MinorMMCmaximum material conditionMOD, MoDMinistry of Defence [ and others]MOP, MoPmeasurement over pinsMOW, MoWmeasurement over wiresMPa, MPAmegapascalsMRBmaterial review boardMS-[ ] Military StandardNASN ational Aerospace StandardsNCNational Coarse; numerical controlNCMnonconforming materialNCRnonconformance reportNECnot elsewhere classified; National Electrical CodeNEFN ational Extra FineNFNational FineNL or N/Lnotes listMachinists or NORMD normalizedNPSN aval Primary StandardNPTN ational Pipe TaperNSNational Special; near sideNSCMN ational Stock/Supply Code for ManufacturersN&T or N/T or NTnormalized and temperedNTSnot to scaleOALoverall lengthOCon centerODouter diameterODAoriginal design activityOHLover high limitOPPoppositeORIG originalpc, pcspiece, piecesPDpitch diameterPDMproduct data managementPH or P/Hprecipitation hardening / pilot holePHR BRZphosphor bronzePL or P/Lparts listPLMproduct lifecycle managementPN or P/Npart numberPOIpoint of fitPSIpounds per square inchPTFE polytetrafluoroethylenePVCpolyvinyl chlorideQMSquality management systemQTY or qtyquantityRradiusRA, Raroughness, average.

10 Rockwell A scaleRB, RbRockwell B scaleRC, RcRockwell C scaleREFreferenceREQD or REQ'DrequiredREVrevisionRFSregardless of feature sizeRHright-handRHRroughness height readingRLReduced Level or Relative LeveRMAreturn material authorizationMachinists mean squareRT or R/Trough turn, rough turned; room temperatureRTPrelease to productionRTVroom-temperature vulcanizing; return to vendorRZ, Rzroughness, mean depthSAES ociety of Automotive EngineersSC or S/Csharp cornersSF or S/FspotfaceSFACE or S/FACE spotfaceSHCS socket head cap screwSHNshownSHSS socket head set screwSISyst me internationalSN or S/Nserial numberSOL ANNsolution anneal, solution annealedSPEC or specspecificationSPHER ANNspheroidize annealSPOTFACESpot facingSRspherical radiusSS or S/Sstainless steelSSTstainless steelSTDS tandardSTEPS tandard for the Exchange of Product Model DataSTAsolution treated and agedSTIscrew thread insertSTLsteelSTKstockTAPT apped holeTB or T/Btitle blockTDPtechnical data packageTHD or thdthreadTHK or thkthicknessTH