Gewefa's M96 & M96+ Chucks: Transforming Standard Tools into High-Precision Holders

Clamp smarter Hydraulic chucks for versatile live tool holding on lathes

2025-09-17 Source: Gewefa 1 min Reading Time

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Gewefa UK Ltd.

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Gewefa’s M96 and M96+ chucks transform standard ER-driven tools into high-precision hydraulic holders, delivering stronger clamping, reduced vibration, longer tool life and faster tool changes.

The Gewefa M96+ hydraulic chuck fits into a standard ER holder with an external thread.(Source: Gewefa) — The Gewefa M96+ hydraulic chuck fits into a standard ER holder with an external thread.
(Source: Gewefa)

“The best of both worlds” is how German tooling manufacturer Gewfa describes its innovative M96 and M96+ hydraulic chucks, which fit into any ER-driven tool quickly and effectively, converting it into a high-precision hydraulic holder. Availability in the UK and Ireland is through subsidiary company Gewefa UK, which offers the products from stock in Germany.

Avoiding the limited clamping force, runout issues, and lengthy tool change times associated with mechanical ER holders, the versatile M96 / M96+ products give the machinist all the benefits of hydraulic clamping. They include higher and more consistent all-round gripping force, effective vibration damping, extended tool life, higher accuracy, and improved surface finish on the machined component, all at a much reduced cost compared with standard hydraulic chucks.

Moreover, with the chucks simply mounted in the output shaft of the ER driven tool and twisted to seal, users can enjoy quicker and easier tool changes, saving time and increasing productivity.

The M96 is suitable for driven tools with an internal thread, while the M96+ is for driven tools with an external thread and is secured to the live tool with a lock nut. The hydraulic chucks are available for sizes ER16, 20, 25, 32 or 40 (currently only the M96), accommodating tool diameters from 5 mm to 25 mm.

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