Kyocera KFMSR2525M220800-4 – External Face Grooving & Cut-Off Toolholder (THT00730)

The Kyocera KFMSR2525M220800-4 (Item no. THT00730) is a robust external grooving and face cut-off toolholder designed for precision grooving operations on lathes and turning centers. With a rigid 25 mm × 25 mm square shank and engineered grooving geometry, it delivers excellent stability and repeatability when machining grooves, slots, and face cut-off features. Ideal for general turning environments where groove accuracy and chip control are important.

This toolholder is suitable for use with neutral grooving inserts such as FMM40-04 style, enabling reliable performance across a variety of materials and machining conditions. Its strong construction and secure clamp system help ensure consistent cutting results.

Key Features & Benefits

• 25 mm × 25 mm square shank — provides rigidity and stability for grooving and cut-off work.
• Designed for face grooving and parting-off operations with ~4 mm groove width capability. 
• Right-hand orientation — matches standard turning machine setups. 
• Compatible with FMM40-04 style neutral grooving inserts for smooth chip control. 
• Secure clamp design — improves insert stability and repeatability. 
• Ideal for production and general machining environments.

Technical Specifications

• Item No: THT00730
• Model: KFMSR2525M220800-4
• Shank Width (B): 25 mm
• Shank Height (H): 25 mm
• Cutting Type: External grooving & face cut-off
• Groove Width: ~4 mm
• Right-Hand: Yes
• Compatible Inserts: FMM40-04 neutral grooving style (approx.)
• Coolant: None (no internal coolant)