Combimaster® M20

Combimaster® is a two-piece milling cutter system with a wide range of shank types, lengths and interchangeable cutter heads.
This new larger holder connection with the M20 thread advances Combimaster into the larger-diameter cutter arena. But most significantly, it delivers excellent stability and strength for high material removal rates. The M20 thread ensures the strongest connection possible between the shank and cutter body. In most instances, the Combimaster M20 allows users to increase both metal removal rates and depths of cut by as much as 15% to improve overall machining performance.
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[@intercostooling]

Magnificently!

[@ClockwerkIndustries]

Insane!! so badass!