Standard ISO Code Breakdown
S: Indicates the shank material is made of Solid Steel (standard rigidity).
25: Specifies a 25 mm shank diameter (thickness of the bar).
S: Represents the tool length, which is exactly 250 mm long.
S: Specifies the clamping system, which uses a Screw down lock to hold the insert securely.
C: Indicates the insert shape it accepts, which is a 80° Diamond (C-shape) insert.
L: Denotes the Approach Angle, which is 95° (allows for facing and boring steps).
L: Specifies that it is a Left-Hand cutting direction tool.
09: Indicates the cutting edge length size of the insert it accepts, which is 9 mm (specifically designed for CCMT 09T3... inserts).
Compatible Inserts & Spare Parts
To use this boring bar, you will need the following inserts and spare parts:
Insert: CCMT 09T304 or CCMT 09T308 (Right-hand or neutral inserts fit into left-hand bars).
Insert Torx Screw: Typically an M3.5 x 8mm or M3.5 x 9mm screw.
Torx Wrench / Key: T15 flag or L-wrench.