S (Clamping Method): Indicates a Screw-on clamping system. The insert is fixed tightly into the pocket using a central clamp screw (typically an M3.5 or Torx screw).
E (Application): Specially engineered for External Threading (machining threads on outer shafts, bolts, or studs).
R (Cutting Direction): A Right-Hand cutting direction tool.
2525 (Shank Cross-Section): Features a square shank measuring 25 mm in width and 25 mm in height. This matches standard 25mm CNC lathe turret tool slots or blocks.
M (Tool Length): Represents the ISO standard length code for 150 mm total length.
16 (Insert Layout Size): Designed to mount standard 16 mm laydown threading inserts (most commonly the 16ER series, such as the 16ER AG60 profile).