Iscar 2500611 Indexable Grooving Toolholder Heli-grip

Product Description

The ISCAR 2500611 is a left-hand external indexable grooving toolholder in the Heli-Grip series, designed for precision grooving on CNC lathes and turning centers. It accepts DG.. 4003 and GRIP 4.. insert families and uses a clamp-style insert holding method for secure, repeatable positioning. The toolholder handles groove widths from 0.157 inches to 0.187 inches and is rated for a maximum workpiece diameter of 1.97 inches. Overall length is 7.0 inches with a 1.25-inch by 1.25-inch square shank. This toolholder is intended for use by machinists and CNC tooling technicians in production and job-shop turning environments.

The 2500611 is suited for external non-face grooving operations on workpieces across a universal range of materials, including steel, stainless, cast iron, non-ferrous alloys, and high-temperature alloys as indicated by workpiece material codes H, K, M, N, P, and S under ISO 13399 classification. It fits standard tool block setups in left-hand cutting configurations and is a multi-use tool capable of handling varied grooving applications within its insert compatibility range. Typical applications include OD grooving, snap-ring grooves, and relief cuts on turned components in both low-volume and high-production runs.

Key Features

• Left-hand cutting direction for external non-face grooving operations
• Accepts DG.. 4003 and GRIP 4.. insert families via clamp-style retention
• Groove width range: 0.157 inches to 0.187 inches
• Square shank: 1.25 inches wide by 1.25 inches tall, 5.3-inch shank length
• Multi-use toolholder rated for universal workpiece materials per ISO 13399
• No coolant-through design; suitable for external flood or air-blast coolant delivery

Compatibility

Compatible inserts include DGL 4003C-4D, DGN 4003C, DGN 4003J, DGN 4003JT, DGR 4003C-4D, GRIP 4002Y, GRIP 4004Y, GRIP 4020Y, GRIP 476-080Y, and GRIP 476-238Y. Compatible insert size codes are DG.-4 and GRIP-4.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before mounting or changing the toolholder or inserts. Seat the square shank fully in the tool block and torque clamping screws to the machine or block manufacturer specification using calibrated tooling. Inspect insert seating and clamp engagement before resuming cutting operations.