Sandvik Coromant 5739646 Internal Grooving Toolholder

Product Description

The SANDVIK COROMANT 5739646 is an internal indexable grooving toolholder in the Coro Cut 1-2 series, designed for non-face internal grooving operations on CNC lathes and turning centers. It accepts N123G2-GM inserts and is engineered for right-hand cutting with a straight-mount shank. Key specifications include a 1.25-inch shank diameter, a maximum depth of cut of 0.3543 inches (9 millimeters), and a minimum groove width of 0.1181 inches (3 millimeters). Through-coolant capability supports extended tool life and chip evacuation in demanding bore-grooving applications. The toolholder is manufactured from steel and is suited for use by machinists and toolroom professionals working on precision internal grooving tasks.

This toolholder is intended for internal grooving of bores with a minimum bore diameter of 1.5748 inches (40 millimeters) and supports a maximum bore depth of 5 inches (127 millimeters). The maximum workpiece diameter is 1.25 inches (31.75 millimeters). It is applicable in production turning environments where consistent groove geometry and repeatability are required. The straight shank mount makes it compatible with standard toolholding systems used in CNC turning applications. The multi-use tool designation indicates it can support a range of grooving tasks within its dimensional envelope.

Key Features

• Internal non-face grooving toolholder in the Coro Cut 1-2 series
• Through-coolant design for improved chip control and insert life
• Accepts N123G2-GM indexable inserts with clamp-style insert holding
• Maximum depth of cut of 0.3543 inches (9 millimeters)
• Groove width range of 0.1181 to 0.1575 inches (3 to 4 millimeters)
• Full radius insert compatibility for smooth groove profiles

Compatibility

Designed for use with N123G2-GM inserts (compatible insert size code N123G2) in internal non-face grooving applications. Minimum bore diameter for use is 1.5748 inches (40 millimeters). Maximum bore depth is 5 inches (127 millimeters).

Installation Notes

Installation should be performed by a qualified machinist or toolroom professional. Ensure the machine spindle is fully stopped and all energy is locked out before mounting or adjusting the toolholder. Secure the straight shank in a properly sized toolholder block per the machine manufacturer torque guidelines. Verify insert seating and clamp engagement before initiating any cutting cycle.