• EA performance system in the machining process

EA-Performance-System

Precision fine boring for small diameters with minimal adjustment effort

With the EA-Performance-System, MAPAL presents fine boring tools with simple, μm-precise adjustment in the diameter range from 10 to 19 mm. The innovative system combines easy handling with high precision, process reliability and cost-effective fine machining.
The image shows the newly developed EA Performance System.
  • The image shows the newly developed EA Performance System.
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  • EA Performance System mounted in the setting device
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MAPAL is setting a new standard in the fine machining of small diameters with the EA-Performance-System. Where two adjustment screws and considerable manual skill and experience were previously required, the new system significantly reduces this effort: The back taper is structurally integrated, and the diameter is adjusted using just a single adjustment screw.
The image shows a clock comparing the setup times of two fine boring tool systems.
Comparison of adjustment times 

For the diameter range from 10 to 19 mm, the EasyAdjust principle could not be implemented in the design. MAPAL therefore developed a standalone system with a newly designed indexable insert and a precisely matched clamping jaw. The defined contact geometry ensures positive, reproducible positioning and fixation of the cutting edge and precisely transmits the adjustment movement, even under process loads.

This enables the EA-Performance-System to combine ease of use with maximum precision and consistent machining results. It is suitable for a wide range of materials and, in particular, for high-precision fitting and bearing bores, such as those found in gearbox housings, cylinders, as well as crankshafts and camshafts. Fewer adjustments and corrections mean fewer errors, less scrap and greater efficiency in series production.

  • MAPAL fine boring tool for quick and precise adjustment via the EA system using only a single adjustment screw.
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    Just one adjusting screw

    Simple, μm-precise and fast diameter adjustment
  • Defined contact geometry of the EA system for positive-locking, repeatable positioning and secure clamping of the cutting edge.
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    Newly developed indexable insert with defined contact geometry

    • Positive and stable cutting edge fixation
    • High process reliability in series production
    • Few corrections and low scrap

More Solutions and Innovations 2026/27