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.
by Black Cat Systems★ 4.119 ratingsUtilities$2.99Data updated 2026-09-08
Calculate cutting parameters for drills, taps, endmills, and ballnose tools. Determine tap drill sizes for inch and metric cut and form taps. Compute suggested tap drill sizes for NPT and NPS threads. Convert decimal equivalents to fractional values.
Provides drill and tap size charts for fractional, letter, and wire standards. It calculates drill sizes for cutting and forming taps based on thread percentage. It also computes RPM and feed rates for cutting taps in various materials.
Calculate size for operations by selecting type, tap size, percentage depth of , clearance, and cutting or forming operation. Adjust settings via tap interface without typing.
Access screw and bolt specifications with detailed dimensions and material grades. View US screws including 93 sizes and 74 material options. Purchase metric screws for 210 sizes and 86 material grades.
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Clear cache and delete unnecessary files to free up storage. Remove duplicate photos and messages. Scan for large files and suggest deletions. Organize data and manage storage usage effectively.
Calculate turning operations with spindle speed, feed rate, and tool engagement angle inputs. Determine cutting time and material removal rates. Convert imperial to metric units. Store and recall frequently used settings.
Measure size using metric or imperial units, choose diameter or circumference, and use visual guides for accurate measurement. Supports sizes for USA, Australia, UK, Europe, Japan, and China. Share size on social networks.
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Find similar and opposite words using an advanced thesaurus. Generate example sentences, rhyming words, related types, and matching words. View definitions and translations for vocabulary support.
Calculate for a specific conductor run or determine wire size based on and current carrying capacity. Limits wire size to and NEC ampacity. Supports AWG and KCMIL sizes only.
Manage tools, track projects, and organize workflows
Perform machine shop calculations for diameters, angles, and threads. Convert between imperial and metric units. Access formulas for gear ratios and thread pitch. Store and retrieve frequently used values. Export results in printable format.
Estimate volume for rectangular, circular, and stepped slabs, footings, columns, walls, and steps. Calculate block and CMU quantities for walls. Estimate mortar mix materials and rebar amounts. Determine gravel needs for bases.
Print labels, barcodes, and addresses. Connect via Bluetooth. Choose from multiple sizes. Support PDF and image files. Access an online store for label templates and customization.
Choose drill types and customize settings like start delay and countdown . Receive coaching tips via chat. Attach photos to drill history and set par time goals. Adjust microphone sensitivity and number of shots.