Terms of Use

This statement applies as terms and conditions to customers using the "" website of MATSUMOTO MACHINE CO.,LTD.("the Company") as terms and conditions for customers using the "https://www.mmkchuck.com/" website. By using this website, you are deemed to have agreed to these terms of use. The Company reserves the right to change these terms and conditions at any time. Such changes will become effective when posted on this website.
In principle, the Company may change or delete the information published on this website without prior notice to you. In addition, the Company may suspend or discontinue the publication of this website for unavoidable reasons or at its own discretion. The Company shall not be liable for any damages incurred by customers as a result of the alteration, deletion, suspension, or discontinuation of the information on this website.


The Company takes the utmost care when posting information on this website. However, the Company makes no warranty as to the accuracy, usefulness, certainty, fitness for particular purpose, or safety (including, but not limited to, the non-interruption of functions, the correction of defects, and the absence of computer viruses or other harmful data or programs on this website or server) of the content of such information. The Company does not guarantee any of the above. The Company shall not be liable for any loss or damage arising out of your use or inability to use such information or your use of this website.

Usage environment

The following environment is recommended for use of this website.

Recommended browser

  • PC
  • Internet Explorer11
  • Edge Latest Version
  • Google Chrome latest version
  • Latest version of Safari
  • smart phone
  • Recommended display setting screen size
  • PC: 1280 x 800px
  • Smartphones: 375 x 667px
  • That is all.

You may not be able to use the Website or the Website may not be displayed correctly depending on the settings of your web browser even in a non-recommended environment or in a recommended environment.

Plug-in (software)

In this website, we provide contents using animation. If you do not have the necessary plug-ins, please download and install them from the following links.

  • Adobe Flash Player
  • Adobe Reader


This website contains content that uses Javascript. If you have disabled Javascript in your web browser, some of the content may not function or display properly. We recommend that you enable Javascript in your browser settings when using this website.

Copyrights, Trademarks, etc.

The products, services, technologies, and other information provided to customers through this website are protected by copyright law, trademark law, and other intellectual property laws and regulations. You may use this information only for certain private purposes and only to the extent permitted by law. You may not use (including reproduction, transmission, distribution, transfer, adaptation, etc. The same shall apply hereinafter. (including reproduction, transmission, distribution, transfer, adaptation, etc.; the same applies hereinafter) requires the prior written permission of the Company. The trade names, trademarks and marks of the Company used on this website are protected by the Trademark Law, Unfair Competition Prevention Law and other laws. You may not use them without the prior written permission of the Company.

Prohibited matter

When using this website, the following acts by customers are prohibited.

  • 1. Actions that infringe or may infringe the property or privacy of a third party or the Company. This includes the use of personal information on this website.
  • 2. Actions that cause or may cause disadvantage or damage to a third party or the Company. Defamation, slander or threats against a third party or the Company.
  • 3. Actions that are or may be offensive to public order and morals.
  • 4. Criminal acts, acts that lead to criminal acts, or acts that may lead to criminal acts.
  • 5. Registering or transmitting another person's e-mail address or other personal information, or impersonating another person.
  • 6. Any action that defames the reputation or credibility of the Company or the Company's website.
  • 7. Use or provision of harmful programs such as computer viruses, or acts that may cause such use or provision.
  • 8. Actions that violate or may violate laws, regulations, or ordinances.
  • 9. The act of providing or permitting the use of the appearance drawing data to a third party without our permission.
  • 10. Any other actions that the Company deems inappropriate at any time.

About links to this website

If you would like to link to this site, whether as a company or an individual, please contact us with the following information.

  • 1) Name of company, individual or organization
  • 2) Name of representative
  • 3) Address
  • 4)TEL
  • 5)E-mail address
  • 6)URL
  • 1. The URL to be set as the link destination is, in principle, the top page of this website "https://www.mmkchuck.com/".
  • 2.It is not permitted to link to the Website using the Company's logos, marks, or other registered trademarks without permission. Linking to this website in such a way as to misidentify the source of the information is not permitted.
  • 3. Please make sure to set the link so that a new browser opens and displays our website. If this website is displayed within a frame, it may be unclear that the content is the Company's content, which may lead to misunderstanding by third parties.
  • 4. Links from websites that fall under the following categories are strictly prohibited.
  • Websites that include content that slanders the Company, other companies (persons), or other organizations, or that is intended to discredit the Company.
  • Sites that infringe, or may infringe, the copyrights, trademarks or other intellectual property rights, property, privacy or portrait rights or other rights of the Company, other companies (or persons) or other organizations.
  • Sites that contain information that may cause the misconception that the site is in some kind of partnership or cooperative relationship with the Company, or that the Company recognizes or supports the site from which the link originates.
  • In addition to the above items, acts that violate laws, ordinances, regulations, or public order and morals, or sites that may interfere with the operation of this website.

About Link Sites

The contents of the websites of third parties other than the Company that are linked to or from the Website ("Linked Sites") are the responsibility of the respective companies. Please follow the terms and conditions of use, copyrights, and other legal provisions of the respective websites when using the Linked Sites. The Company assumes no responsibility for the content of the Linked Sites or for any damages resulting from the use of the Linked Sites.


About CAD data (Model)

  • 1. Some details in the shape data may be simplified to reduce the size.
  • 2. Shapes that are unnecessary for layout studies,Such as chamfers,Corner rs,Draft slopes,Threaded portions,and detailed shapes of screw heads,are omitted.
  • 3. Please use the model of CAD data only for design study.
  • 4. The contents of the CAD data may be changed without notice due to product improvements or other reasons.
  • 5. The CAD data does not guarantee the specifications of our products,and any damage caused by the use of the CAD data is not covered by our compensation.