Iscar 2801631 Internal Grooving Toolholder Mincut

Product Description

The ISCAR 2801631 is an internal right-hand indexable grooving toolholder designed for non-face grooving operations in bore applications. Part of the ISCAR MinCut series, it accepts MI.R 10.. and MI.R 8.. insert families and uses a screw-clamp insert holding method for secure, repeatable seating. The toolholder features through-coolant capability with a 0.203-inch coolant hole diameter, directing fluid directly to the cutting zone for improved chip evacuation and tool life. With an overall length of 4.03 inches, a 0.5-inch round shank, and a maximum depth of cut of 0.492 inches, this holder is built for tight-bore internal grooving work on CNC lathes and turning centers.

The 2801631 is suited for internal grooving on a broad range of workpiece materials, including steel, stainless, cast iron, non-ferrous alloys, and high-temperature alloys, covering ISO material codes H, K, M, N, P, and S. The MIFH toolholder style and 4.522-inch shank length provide the reach needed for small-bore applications while maintaining rigidity. This toolholder is typically used by machinists and CNC lathe operators in precision component manufacturing, job shop turning, and production environments where consistent groove geometry is required.

Key Features

• Internal right-hand non-face grooving toolholder in the ISCAR MinCut series
• Maximum depth of cut of 0.492 inches with a center-to-cutting-edge distance of 0.055 inches
• Through-coolant design with 0.203-inch coolant hole for direct flood delivery at the cutting edge
• Screw-clamp insert holding method for rigid, repeatable insert indexing
• Universal material compatibility across ISO codes H, K, M, N, P, and S
• Complies with ISO 13399 tooling data standards for CAM and presetter integration
• Multi-use tool designation supports a wide range of compatible insert geometries

Compatibility

Compatible insert families include MI.R 10.. and MI.R 8.. series. Specific compatible insert part numbers are: MIFR 10-2.00-1.00, MIFR 10-2.50-0.20, MIFR 10-3.00-0.20, MIFR 10-3.00-1.50, MIFR 8-1.50-0.20, MIFR 8-1.60-0.80, MIFR 8-2.00-0.20, MIFR 8-2.20-0.20, MIGR 8-0.50-0.00, MIGR 8-1.00-0.05, MIGR 8-1.20-0.05, MIGR 8-1.20-0.60, MIGR 8-1.50-0.05, and MIGR 8-1.60-0.80. Compatible insert size codes include MEFL, MIFR, MIGR 8, MITR 8-MT, and MIUR 8.

Installation Notes

This toolholder is installed by a qualified machinist or CNC setup technician. Power down and lock out the machine spindle before changing inserts or mounting the toolholder. Ensure the shank bore and toolholder shank are clean and free of chips before clamping to maintain concentricity. Connect the through-coolant supply line per the machine tool manufacturer's specifications before operation.