60° Thread Calculator
Calculate thread specifications from table values including wire sizes and pitch diameters.
60° Thread Formula
Formula-based calculations for 60-degree thread specifications using ANSI standards.
ACME Thread Calculator
External ACME thread specifications with tolerances for 2G, 3G, and 4G classes.
Bolt Hole Pattern
Calculate X/Y coordinates for bolt circle patterns with visual diagram.
The Grate Cajun
Cajun Timing
Two-stroke engine port timing from depth micrometer readings.
Spur Gear Calculator
Complete spur gear specifications including pitch diameter and wire measurements.
Morse Taper Reference
Standard Morse taper dimensions for MT0 through MT7.
Line Rake Calculator
Control line rake angles for model aircraft.
Mini Pipe Calculator
Exhaust pipe dimensions for small engine applications.