Enter a nominal diameter for a hole or shaft and select a grade to view upper and lower tolerances. Calculate tolerances for diameters up to 500 mm in metric or 19.685 inches in imperial. Display values based on ISO 286 standards.
by gary davies★ 5.01 ratingsProductivity$0.99Data updated 2026-09-06
Manage files with an image browser supporting JPG, JPEG, PNG, BMP, GIF, and other formats. Edit text with adjustable size and hundreds of fonts. Preview office documents including Word, PPT, Excel, Pages, Keynote, Numbers.
Measure size using camera with AR technology or place on screen within a designated circle. View diameter and size results. Save measurements for future reference.
Convert dates between Gregorian, Islamic, Coptic, Um Al Qura, Hebrew, and Solar Hijri . Select a and system, then view converted dates. Switch between calendar systems and compare dates side by side.
Calculate bit size for threaded holes using bolt diameter, thread pitch, and percentage for inch and metric threads. Display close fit hole sizes for common sizes. Provide tables for standard inch fractional and numeric bit sizes.
Access a library of universal symbols with HTML code support. Copy symbols from ISO-8859-1, HTML, or special categories. Edit equations directly in the equation editor and copy formatted results.
Calculate gas piping system sizes for low-pressure applications. Input total flow, pressure drop, diameter, or velocity. Output exact and nominal diameters, calculated velocity, and total equivalent length.
The app calculates properties for triangles, trapezoids, and circles. It accepts various input formats for angles and lengths, displaying results in the chosen format.
Allows users to calculate resistor values using color codes and SMD codes. It includes tools for Ohm's Law, reactance, resonance, and voltage dividers. Users can determine resistor ratios, series/parallel combinations, and LED resistor needs.
Compress and decompress files into formats like ZIP, 7z, RAR, and TAR. Extract multi-part archives and password-protected files. Split files into parts and add passwords. Manage files with built-in file manager. Supports VoiceOver for accessibility.
Allows users to input outside diameter, roll center, yield, and Young's modulus to calculate in inches or millimeters. It includes a unit selector for imperial or metric conversion. Users can view past calculations through the History feature.
Access advanced settings including saturation, exposure, ISO, and gamma. Capture slow motion, long exposure, and light trails. Browse, download, and edit files on a connected SD card. View tutorials for professional shooting techniques.
Check levels with three viewing options: surface, portrait, and landscape. Display angle and slope in percentage. Calibrate with all four sides. Includes carpenter's level, angle measurement, surface flatness, line level, and compass tools.