Free Tools

Free tools for Indian machinists and procurement teams. No signups. No paywalls.

AI Tools

CAD-to-RM Estimator

Upload a STEP file, get recommended raw stock dimensions with machining allowance.

Mill Cert Reader

Upload a PDF mill certificate. AI extracts and validates key fields.

Calculators

Aluminium Weight Calculator

Calculate weight in kg for any aluminium form, dimensions, and grade.

Hardness Converter

Convert between Rockwell, Brinell, Vickers, and approximate tensile strength.

Speeds & Feeds Calculator

Coming soon

Calculate optimal cutting parameters for any material and tool.

Material Removal Rate

Coming soon

Compute MRR for milling, turning, and drilling operations.

Chamfer / Countersink Calculator

Coming soon

Calculate chamfer depth and countersink diameter.

Scrap Value Calculator

Coming soon

Estimate the value of your metal scrap by weight and grade.

Thermal Expansion Calculator

Coming soon

Calculate dimensional change due to temperature variation.

Stack Tolerance Calculator

Coming soon

RSS and worst-case tolerance stack analysis.

Shop Rate Calculator

Coming soon

Calculate hourly shop rate with overhead and margin.

Weld Distortion Estimator

Coming soon

Predict angular and longitudinal distortion from welding.

Reference

US–India Alloy Crosswalk

Map alloy designations across AA, AISI, UNS, BS, DIN, JIS, and IS systems.

Reference Charts

Tap Drill Chart

Coming soon

Standard tap drill sizes for UNC, UNF, and metric threads.

Thread Pitch Reference

Coming soon

Major diameter, pitch, and TPI for common thread series.

Drill Size Chart

Coming soon

Number, letter, fraction, and metric drill sizes.

Bolt Torque Reference

Coming soon

Recommended torque values by bolt size and grade.

GD&T Quick Reference

Coming soon

Symbols, modifiers, and tolerance zone definitions.

Plate Stock Reference

Coming soon

Standard plate and sheet sizes by material.

Machine Taper Reference

Coming soon

MT, BT, CAT, and HSK taper dimensions.

G-Code / M-Code Reference

Coming soon

Standard CNC programming codes with descriptions.

Insert Geometry Decoder

Coming soon

Decode ISO turning insert designations.

Weld Filler Metal Selector

Coming soon

Select filler metal by base material and joint type.

Converters

Surface Finish Converter

Coming soon

Convert between Ra, Rz, RMS, and N-grade systems.

Decimal / Fraction / mm Converter

Coming soon

Instant conversion between decimal inches, fractions, and millimeters.

Viewers

STEP File Viewer

Coming soon

View STEP and IGES files directly in your browser.