Tools & Calculators
A catalog of trade calculators for field checks, shop math, and planning estimates. Search by work, material, standard, or category.
Machinist
23 live toolsBench and spindle math: chip load, thread ID, tolerance fits, bolt circles, taper angles, material weight.
Showing Machinist tools. 23 shown.
Tools in Machinist
Shops & Outbuildings
87 toolsOutbuildings
22 toolsMachining & Welding
10 toolsBearings
9 toolsPlant Maintenance
24 toolsInstrumentation
18 toolsPipefitting
4 toolsIndustrial
44 toolsSafety
37 toolsElectrical
35 toolsProductivity
25 toolsMachinist
23 toolsAISI/SAE Steel Grade Decoder
Decode AISI/SAE and stainless steel grades instantly. Alloy composition, machinability, heat treatment, weldability, and applications for carbon, alloy, tool, and stainless steels, with full stainless coverage: UNS S-numbers, EN 1.4xxx cross-reference, austenitic / ferritic / martensitic / duplex / PH family, and a computed PREN. Type a grade (316L, 2205), a UNS or EN number (S31603, 1.4404), or an application.
Advanced Tap Drill Calculator
Calculate tap drill sizes for any thread engagement percentage (50-85%) with full drill cross-reference in fractional, number, letter, and metric systems. UNC, UNF, and Metric threads.
Bend Deduction & K-Factor Calculator
Calculate bend allowance, bend deduction, K-factor, and flat pattern length for sheet metal bending. Supports air bending, bottoming, and coining with common materials.
Bolt Circle Calculator
Generate X/Y hole coordinates for bolt circle patterns. DRO-ready output with multiple pattern support, interactive SVG diagram, incremental coordinates, and G-code generation.
CNC G-Code Quick Reference
Searchable CNC G-code and M-code reference. Generic descriptions, syntax examples, and mill vs lathe applicability for 70+ codes. Controller-agnostic per ISO 6983.
CNC Job Setup Planning Sheet
Generate CNC job setup sheets with automatic speed, feed, and MRR calculations. Printable shop floor documents with chipload verification, workholding, and coolant notes.
Chip Load Calculator
Calculate chip load per tooth for milling, drilling, and turning. Forward and reverse modes with material-specific recommendations, chip thinning factor, and MRR. Metal and wood modes.
Clamping Force Calculator
Calculate workpiece clamping force from bolt torque, stud size, and friction coefficient. Yield strength safety check with visual warning system. SAE and metric bolt grades.
Compression Spring Calculator
Design helical compression springs. Spring rate, solid height, buckling check, stress at working length, and fatigue life per SMI standards.
Counterbore & Clearance Hole Calculator
Calculate clearance hole, counterbore, and countersink dimensions for socket head and hex cap screws. ASME B18.2, ISO 273, close/normal/loose fit. Inch and metric.
GD&T Quick Reference
Interactive GD&T reference for all 14 geometric tolerances per ASME Y14.5. Plain-English explanations, feature control frames, inspection methods, and common mistakes.
Machinability Comparison Tool
Compare machinability ratings, SFM ranges, and chip loads for 30+ metals. Filter by material category, operation type, and tooling. Interactive sortable reference.
Material Weight Calculator
Calculate weight of metal stock in 9 shapes: round bar, tube, square, hex, sheet, angle iron, and more. 16 materials with cut list builder and cost estimator.
Pipe Thread Dimension Calculator
Calculate NPT, NPTF, BSPT, and BSPP pipe thread dimensions. Tap drill sizes, taper rates, effective thread length, and pitch diameters for 1/8 through 4 inch pipe.
Sheet Metal Weight & Cost Calculator
Calculate sheet metal weight from gauge thickness, dimensions, and material type. Supports steel, stainless, aluminum, brass, and copper with gauge-to-thickness conversion tables.
Shop Math Worksheet
Combine tap drill, counterbore, material grade, and hardness calculations into one printable machine shop worksheet. All math free - professional PDF export.
Smart Drill Size Finder
Find any drill size instantly. Convert between fractional, letter, number, and metric drill sizes. Shows nearest alternatives in every system with tolerance from exact.
Surface Finish (Ra) Calculator
Calculate theoretical surface finish Ra from feed rate and tool nose radius. Forward and reverse modes with standard callout comparison chart. Turning, milling, and boring.
Taper & Angle Calculator
Calculate tapers, sine bar heights, tailstock offsets, and angle conversions. Includes Morse taper and Brown & Sharpe reference tables with full DMS angle output.
Thread Pitch Identifier
Identify unknown threads from caliper measurements. Cross-references UNC, UNF, Metric ISO, NPT, BSP, and ACME thread standards with tolerance matching and confidence scoring.
Thread Repair Insert Sizing Guide
Find the correct thread repair insert size for Helicoil, E-Z Lok, and Keensert systems. Tap drill, insert length, and installation torque by thread size.
Tolerance & Fit Calculator
ISO 286 tolerance zone calculator for shaft/hole fits. Calculates clearance, transition, and interference fits with visual tolerance zone diagram and common fit presets (H7/g6, H7/h6, H7/p6, etc.).
Weld Joint Prep Calculator
AWS D1.1 prequalified groove weld joint dimensions. Bevel angle, root opening, root face, groove angle, and effective throat for V, bevel, J, and U groove joints.
HVAC
20 toolsEmissions
19 toolsMunicipal
16 toolsGeology & Drilling
12 toolsAgriculture
10 toolsHauling
8 toolsResidential
6 toolsSolar & Renewables
6 toolsStructural
6 toolsFoodservice
5 toolsHardscaping
5 toolsMarine
4 toolsArboriculture
3 toolsLive Events
3 toolsWoodworking
2 toolsFind the Right Calculator Faster
Start with a trade, then search the actual job term: ampacity, snow load, grease trap, bearing life, voltage drop, or pipe schedule. The URL keeps the filter so the same list can be reopened.