Iscar 2300865 Indexable Cutoff Toolholder Right Hand

Product Description

The ISCAR 2300865 is a right-hand indexable cutoff toolholder designed for grooving, parting, and turning operations on CNC lathes and manual turning centers. Built on the Self Grip series platform, it accepts a range of GFN and GFR/L insert profiles and accommodates insert widths from 0.178 inches up to 0.217 inches. The toolholder features a 1 inch square shank and an overall length of 5.9 inches, making it suitable for standard turret and block-style tool posts. Machinists and CNC operators working in production or job-shop environments install this holder for precise cutoff and grooving work on workpieces up to 3 inches in diameter.

This toolholder is suited for residential machine shops, production facilities, and industrial turning applications. It is appropriate for use on parts requiring clean parting cuts or precision grooves in steel, aluminum, and other common turned materials. The Self Grip clamping method secures the insert without additional hardware, supporting fast insert changes in high-cycle environments. Compatible insert families include GFN-A, GFN-C, GFN-J, GFN-M, GFN-U, GFN-W, GFR/L-C, GFR/L-J, GFR/L-W, and GFR-U profiles.

Key Features

• Right-hand orientation for standard lathe turret mounting
• Self Grip clamping system allows tool-free insert indexing
• Accepts insert widths from 0.178 inches to 0.217 inches
• Supports grooving, parting, and turning applications in one holder
• 1 inch by 1 inch square shank fits common turret and block tool posts
• Conforms to ISO 13399 tooling data standards

Compatibility

Compatible with GFN-A, GFN-C, GFN-J, GFN-M, GFN-U, GFN-W, GFR/L-C, GFR/L-J, GFR/L-W, and GFR-U inserts. Toolholder style is SGTF. Manufacturer catalog reference is SGTFR25.4-5.

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. Power down and lock out the machine spindle before mounting or removing the toolholder from the turret. Ensure the tool post or turret pocket is clean and free of chips before seating the shank. Follow machine manufacturer torque guidelines for turret clamping bolts — do not rely on feel alone when securing a cutoff holder, as rigidity is critical to preventing chatter and insert breakage during parting operations.