Three-Wire Pitch Diameter Calculator
Compute pitch diameter from a measurement over wires, with best wire sizes and full UN thread dimension tables — calculated live from ASME B1.1 formulas, not transcribed from charts.
Open the calculator →Pre-Plate Pitch Diameter Calculator
Threads grow during plating — four times the coating thickness on pitch diameter. Work out where the thread needs to be before coating so it gages after.
Open the calculator →Gage Tolerance Selection Tool
X, XX, Z or ZZ? Compare gagemaker tolerance classes against your part tolerance with the 10% rule and see exactly how much of your tolerance each class consumes.
Open the tool →TAR & TUR Calculator
Test Accuracy Ratio and Test Uncertainty Ratio, computed the way your auditor checks them. Know whether you clear the 4:1 rule before the audit does.
Open the calculator →Process Capability — Cp, Cpk, Pp, Ppk
Enter spec limits and measurement data; get capability indices and estimated PPM. Built for quick shop-floor checks, not another statistics course.
Open the calculator →Thermal Expansion Compensation
Correct measurements to the 20 °C reference temperature per ISO 1, with a CTE library covering steel, aluminum, carbide, and more.
Open the calculator →Thread & Gage Reference Charts
Pitch diameter charts for English and metric thread gages, pipe thread, taper, fraction-to-decimal, and shop conversions — searchable, printable, free.
Open the reference →