Sandvik Coromant 5740899 Grooving Cutoff Toolholder Corocut 1-2

Product Description

The SANDVIK COROMANT 5740899 is a right-hand indexable grooving and cutoff toolholder in the CoroCut 1-2 series, cataloged under manufacturer part number RF123F079-12B. It accepts N123F2-0250-CM inserts held in place by a clamp-style insert holding method. The toolholder handles groove widths from 2.39 millimeters to 3.18 millimeters and supports a maximum depth of cut of 20.07 millimeters (0.79 inches). The square shank measures 0.75 x 0.75 inches with an overall length of 5 inches (127 millimeters). This tool is designed for external turning operations including grooving, parting, and cutoff work on CNC lathes and turning centers.

This toolholder is suited for external grooving, parting, and cutoff operations on CNC turning equipment in both production shop and job shop environments. The RF123F079-12B style fits standard tool turret and block-style tool posts that accept 0.75-inch square shank toolholders. Compatible insert size code is N123F2, and the specified insert is N123F2-0250-CM. It is typically installed by machinists and CNC setup technicians working on precision turned components where controlled groove geometry and repeatable depth of cut are required.

Key Features

• Groove width range: 2.39 millimeters to 3.18 millimeters (0.0941 to 0.125 inches)
• Maximum depth of cut: 20.07 millimeters (0.79 inches)
• Clamp-style insert retention for rigid, repeatable insert positioning
• 0.75 x 0.75 inch square shank with 3.425-inch shank length
• Right-hand external toolholder — CoroCut 1-2 series, style RF123..B
• No coolant-through — external coolant application only

Compatibility

Designed for use with N123F2-0250-CM inserts (compatible insert size code N123F2). Fits tool turrets and block holders accepting a 0.75 x 0.75 inch square shank. Part of the CoroCut 1-2 series.

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. Power down and lock out the machine before mounting or removing toolholders. Seat the shank fully in the tool block or turret pocket and torque clamping screws per the machine tool manufacturer specifications. Inspect the insert seat and clamp for wear or debris before seating a new insert.