About machref

machref is a free machinist reference site for speeds and feeds, tooling, materials, CNC programming, and general shop reference. It is intended for machinists, CNC operators, and shop hobbyists who need quick access to common reference data at the bench or on the shop floor.

Our Purpose

We organize commonly used machining reference material into clear, searchable pages so you can find tap drill sizes, cutting speeds, insert grades, and G-code commands without wading through slow apps or PDFs. machref is an educational quick-reference tool — not a substitute for manufacturer specifications or your shop's proven processes.

Who We Are

machref is maintained by a small team with a background in machining and manufacturing software. We focus on accuracy, readability, and fast page loads because reference tools only help when they are trustworthy and available when you need them.

Affiliate Links

This site includes affiliate links. We may earn a commission when you make a purchase through certain links, at no additional cost to you. Affiliate relationships do not affect our reference content. This helps support the site.

Privacy and Analytics

Theme preference, recent searches, and cookie consent are stored in your browser. We do not require an account. With your consent, we use privacy-focused analytics (Matomo) and may show ads via Google AdSense. Details are in our Privacy Policy.

Corrections & Feedback

Manufacturing standards and tooling catalogs evolve. If you spot an error or outdated value, please email [email protected] with the page URL and source. We review all correction reports.

Contact

General questions: [email protected] · Corrections: [email protected] · See the Contact page for privacy and accessibility addresses.