SRDCN → Code for tool holder type (ISO designation, often used for carbide insert turning).
2525 → Shank size (25mm × 25mm).
M12 → Insert clamping screw size (M12 thread).
Radius Tool → Usually indicates it is used with round nose or radius carbide inserts for profiling/finishing.
It’s a CNC lathe turning tool holder with a 25×25 mm shank, used for holding carbide inserts to perform turning, facing, profiling, and radius machining.