Precision to the micron.

Mu-Tools SA specialises in the manufacture of micrometrical expandable diamond honing tools and the production of manual honing apparatus and automatic honing machines.

In particular, Mu-Tools SA manufactures the world’s smallest expandable honing tool with a diameter of 0.6 mm.

allumette et rodoir comparaison - Mu-Tools SA

Our specialities


Honing is our expertise

Rediscover impressive know-how and innovative products. With just one hour of training, anyone can start exploring with the micron.

Honing Machine

Our honing machines in pictures

Now a key partner in the development of honing technologies, MU-TOOLS has extended its range to include single and double spindle honing machines. The honing tool expansion system makes it possible to repeat the diameter and geometry of a bore to within a micron.

Our strengths

100% in-house manufacturing, very large stock of finished hones and blanks bodies in order to meet short delivery times. Control of the manufacturing processes allows a guarantee of repeatability in the quality of the manufactured products manufactured.

Manufacture of customised honing tools according to the application use of the customer’s partmaster part. Participation in the implementation of honing processes and preparation of parts before lappinghoning, in order to obtain achieve the best results.

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