Threads Charts Metric ThreadsCoarse and fine-pitch metric charts. Drawings, Symbols, Formulas, Dimensions, and Tolerances Inch ThreadsUNC, UNF & UNEF thread series charts. Drawings, Symbols, Formulas, Dimensions, and Tolerances National PipeNational Pipe Tapered threads (NPT). Drawings, Symbols, Formulas, Dimensions, and Tolerances Dryseal Pipe ThreadsNational Pipe Tapered Fuel threads (NPTF). Drawings, Symbols, Formulas, Dimensions, and Tolerances British Pipe ThreadsBritish Pipe threads (BSP). Drawings, Symbols, Formulas, Dimensions, and Tolerances ACME Trapezoidal ThreadsDrawings, Symbols, Formulas, Dimensions, and Tolerance for standard and special threads. Material Charts MachinabilityMachinability data for 200 raw materials Machining DataDetailed Machining Data for 700 raw materials. Specific Cutting ForceK1C Formulas and Charts Raw Materials ConversionFind equivalent materials standards for SAE, AISI, DIN, Wnr, UNI, UNS, BS, ANFOR, and JS. Carbide GradesCarbide grades from all the major cutting tool companies in the industry. VDI 3323VDI Material Groups Cutting Tools Charts SFM to RPMSFM to RPM Calculator, Formula, and Chart. RPM to SFMRPM to SFM Calculator, Formula, and Chart. Tap Drill SizeTap drill sizes for all diameters and depth percentage