Tungaloy 6880647 Grooving Cutoff Toolholder CTER16-3T25

Product Description

The TUNGALOY 6880647 is an external, right-hand indexable grooving and cutoff toolholder carrying the manufacturer catalog designation CTER16-3T25. Part of the TungCut series, it accepts DG, DT, and SG family inserts secured by a clamp-style holding method. The toolholder features a 1 inch by 1 inch square shank with an overall length of 6 inches, a minimum groove width of 0.118 inches, and a maximum depth of cut of 0.984 inches. It is designed for use on CNC lathes and turning centers and is installed by machinists and toolroom technicians performing grooving, parting, and general turning operations.

This toolholder is suited for external grooving and parting applications across a wide range of workpiece materials, including steels, stainless steels, cast irons, non-ferrous alloys, heat-resistant superalloys, and other universal material groups corresponding to ISO material codes H, K, M, N, P, and S. The CTE-style toolholder body is appropriate for production turning environments where consistent insert seating and rigid clamping are required. Compatible insert size codes include DGG, DGL, DGM, DGS, DTE, DTM, DTR, DTX, SGM, SGN, SGS, and STR with an insert seat size of 3.0.

Key Features

• Right-hand external toolholder in the TungCut series, catalog number CTER16-3T25
• Clamp-style insert holding method for secure seating during grooving and parting cuts
• Minimum groove width of 0.118 inches and maximum depth of cut of 0.984 inches
• 1 inch by 1 inch square shank, 4.248 inches shank length, 6 inches overall length
• Compatible with DG, DT, and SG insert families across multiple size codes
• Supports grooving, parting, and turning applications across ISO material groups H, K, M, N, P, and S
• Conforms to ISO standards; no coolant-through capability

Compatibility

Compatible insert size codes: DGG, DGL, DGM, DGS, DTE, DTM, DTR, DTX, SGM, SGN, SGS, and STR. Insert families DG, DT, and SG are supported. Insert seat size is 3.0. This toolholder is designed for external grooving and parting operations on CNC lathes and turning centers.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and the lathe or turning center is powered down before changing inserts or mounting the toolholder. Secure the shank in the tool turret or holder block according to the machine manufacturer torque guidelines using appropriate fasteners. Verify insert seating and clamp engagement before resuming cutting operations.