Extension Ø4, Titanium, M3 (touch-trigger)

Standard M3 extensions have a smaller outer diameter of 4 mm compared to the 5 mm diameter used with the ZEISS M3 XXT system. The resulting loss of rigidity is compensated for by the use of a stable titanium rod. The weight of these extensions is lower than comparable extensions made of stainless steel, but still significantly higher than ZEISS M3 XXT systems