About The Machining Doctor Website

What is the Machining Doctor?

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Machining Docor Mission Statement

Mission Statement

At Machining Doctor, our mission is to serve the machining industry as a comprehensive and reliable source of technical information. We strive to be the go-to destination for professionals in the niche seeking information, knowledge, and expertise. Our website is designed to be a one-stop-shop for all your machining needs, offering a wealth of resources and tips to help you stay ahead of the curve. Join us on our journey to empower the machining community with the tools and knowledge they need to succeed.


How do we achieve it?

The Machining Doctor was built from the ground up with a clear mission in mind: to serve professionals in the machining industry. Unlike other websites that simply provide articles and basic calculators, the Machining Doctor is a comprehensive system designed by industry experts to meet the specific needs of those in the field.

At the heart of our system is our proprietary technical database, which enables us to provide information with logical interlinking, making it easy for you to find exactly what you need. We’ve also created the broadest and most sophisticated collection of online calculators to make your daily life easier.

Our technical charts are equipped with “smart” filters and search capabilities, allowing you to quickly and easily find the information you need. At the Machining Doctor, we’re dedicated to providing you with the tools and resources you need to succeed in the machining industry.

Timeline 1


Many times in life, something terrible can also be an opening for something good. In 2020, like many others, the Corvid-19 pandemic “forced” us to have too much free time. It was then we decided to link together our combined skills and develop the MachiningDoctor.com website. The goal is to provide quality technical information for professionals in the machining industry without the bias and exaggeration typical of the big commercial companies in the niche that provide such information only to get you to buy their products.

Site Sections 1

Main sections of the website

  • Online Calculators
  • Raw Materials
  • Technical Charts
  • Carbide Grades
  • Machining Glossary

Online Calculators

The calculators are the backbone of the machining doctor! There are currently 27 calculators, ranging from simple unit convertors to complex engineering calculators. We are particularly proud of our two advanced calculators:

The SpeeDoctor, is our Speed and Feed Calculator. It uses a proprietary algorithm, which takes into account dozens of parameters, to provide you with reliable cutting data.

The ThreaDoctor, is our threading calculator. We’ve thoroughly analyzed the complex ISO and ANSI documents to provide you with a comprehensive set of data for each thread.

PMK App Range

Raw Materials

The raw material section is based on our proprietary materials database, structured uniquely to serve the website’s needs (Such as estimating cutting conditions, grades, etc.). The database contains about 700 raw materials.


Our machinability chart is the most comprehensive on the web, featuring pinpointed ratings for the 200 most popular materials. Additionally, it offers advanced filter and search options for user convenience.

Material Pages (Or Machining Datasheets)

When a raw material appears anywhere across the website, it is linked to its Material page, (or machining datasheet, as we like to call it).

Each material pages contains the following sections:

  • Equivalent Standards.
  • Chemical Composition.
  • Cutting Speeds Recommendation.
  • Recommended Carbide Grades.
  • Cutting Edge Geometry.

Check out, for example, the material pages of Steel 4140, Stainless Steel 316, or Inconel 718.

Machining Technical Charts

Technical Charts

The chart section is mostly self-explanatory. The only area that deserves special attention is the thread charts. We currently support 6 threading standards: Unified Inch, Metric, NPT, NPTF, BSP, and ACME.

We have a separate reference page for each standard, containing charts for basic dimensions and tolerances, deep technical explanations, and detailed mathematical formulas. Nowhere else on the web can you find such comprehensive information!

Carbide Grades

Carbide Grades

Carbide grades are dealt with very seriously by the machining doctor. 

We maintain a proprietary grades database that enables us to give carbide grade recommendations and comparisons with our unique algorithm.

Our database currently stores the grades of 8 leading cutting tools suppliers. If your company is not listed, feel free to contact us and learn how you can add it to the list. Every company on our list has a webpage displaying its complete carbide grades charts, similar to what you would find in their catalogs.

So, why should you view our chart instead of the official websites? Our charts have a unified and clear format, making it exceptionally easy to compare different brands. Plus, it’s all in one place, so you don’t have to go searching around different websites.

Like in the raw materials section, each grade listed on the charts is clickable. By clicking on a grade, you will be redirected to a page with information about that grade, including recommended cutting speeds and comparable grades from other manufacturers. (For example, KCU25)

But the main attraction is our carbide grades online tools. They make it easy to find the recommended grades for any application. 

For example, you can play around with the application parameters on the grade wizard and get the most suitable grades from the listed brands. 

Machining Glossary

Machining Glossary

Our Machining Terms Glossary is constantly growing with hundreds of entries to provide you with the best resource possible. When you encounter a glossary term on a webpage, simply, hover over it to reveal a quick information panel about that term.

If you happen to notice any missing terms, please do not hesitate to submit them to us for inclusion. As a token of appreciation, we will reward you with a backlink to your company’s website, a personal credit on the terms page, and a mention on our social media platforms.

contact us

Contact And Feedback

We highly value user feedback. Please don’t hesitate to share with us your thoughts, both positive and negative, about the website as well as any suggestions for future improvements. Your input is greatly appreciated and will be taken into serious consideration.

The team

Erez Speiser

Erez Speiser
Founder & Owner

About Erez Speiser

Christian Hilker

Christian Hilker
Market Manager

About Christian Hilker

Eric Spencer

Eric Spencer
Technical Instructor

About Eric Spencer

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