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BIG Kaiser Precision Tooling Products
BIG Kaiser Präzisionswerkzeuge AG
Fine boring tools
EWN/EWD Smart Damper
The EWN/EWD Smart Damper dampens vibrations and reduces chatter in deep-hole finish boring and extended-reach face milling applications – thus achieving better surface finishes and improved metal removal rates.

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EWE Ø 2-152
EWE Ø 2-152
EWE Digital Fine Boring Head
BIG Kaiser Präzisionswerkzeuge AG
Fine boring tools
EWE Ø 2-152
EWE 2-32, Ø 2-32 mm
EWE 2-152, Ø 2-152 mm

EWE digital fine boring heads connect to BIG KAISER's user-friendly smartphone and tablet app, making it easier to monitor and configure the head while assembling and running boring tools. As well as being able to read changes in cutting diameter, the app helps operators determine optimal cutting parameters from their tool assemblies. The app also logs historical adjustments for all tools ever synced with it, providing essential information for companies adopting smart manufacturing.
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EWE Ø 41-203
EWE Ø 41-203
EWE Digital Fine Boring Heads
BIG Kaiser Präzisionswerkzeuge AG
Fine boring tools
EWE Ø 41-203
Fine boring heads with side mounted insert holder

EWE 41, Ø 41-74 mm
EWE 53, Ø 53-98 mm
EWE 68, Ø 68-150 mm
EWE 100, Ø 100-203 mm

Thanks to the large display on these digital boring heads, machining of extremely precise bores has become very easy. Moreover, the user friendly digital display shortens the time for adjusting the boring head by at least 20%. Thanks to intelligent electronics with automatic switch off function which, automatically stores the last displayed value, operator error can be drastically reduced.
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EWN Ø 0.4 - 152
EWN Ø 0.4 - 152
Fine boring heads
BIG Kaiser Präzisionswerkzeuge AG
Fine boring tools
EWN Ø 0.4 - 152
Fine boring heads with centric boring bars in modular and integral execution

EWN 04-7, Ø 0.4-7 mm (smallest precision boring head in the world)
EWN 04-15, Ø 0.4-15 mm
EWN 04-22, Ø 0.4-22 mm
EWN 2-32, Ø 0.4-32 mm
EWN 2-50XL, Ø 2-152 mm
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EWN Ø 20-203
EWN Ø 20-203
Fine boring tool
BIG Kaiser Präzisionswerkzeuge AG
Fine boring tools
EWN Ø 20-203
Fine boring heads with side mounted insert holder

EWN 20, Ø 20-36 mm
EWN 25, Ø 25-47 mm
EWN 32, Ø 32-60 mm
EWN 41, Ø 41-74 mm
EWN 53, Ø 53-98mm
EWN 68, Ø 68-150mm
EWN 100, Ø 100-203 mm

The EWN single cutter boring tool program for finishing covers a range of Ø 20 - 203 mm with only 7 precision boring heads. Large work range due to 3 different insert holders for each boring head. Insert holder can be mounted in opposite direction for an easy changeover to back boring.
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