Kennametal 1950275 Indexable Profiling Toolholder Internal

Product Description

The KENNAMETAL 1950275 is an internal indexable profiling toolholder designed for precision boring and profiling operations on CNC lathes and turning centers. Built in Series C with a solid carbide and steel construction, this right-hand holder features a 5-degree lead angle and neutral rake, making it well suited for controlled material removal on internal bore profiles. The screw-type insert holding method keeps compatible GP-series inserts securely indexed during cuts. The 5/16-inch shank diameter and 6-inch overall length provide reach into tight internal features while maintaining rigidity. Coolant-through capability supports chip evacuation and tool life in deep-bore applications.

This toolholder is intended for internal profiling and turning work in metalworking environments, typically operated by machinists and CNC tooling specialists in production shops and job shops. It accepts a minimum hole diameter of 0.423 inches and reaches a maximum hole depth of 4 inches, making it practical for small-bore finish and semi-finish passes. The 0.251-inch center-to-cutting-edge measurement contributes to accurate bore geometry. Applications span ferrous and non-ferrous alloys where a compact, rigid internal toolholder is required for contour or profiling passes.

Key Features

• Internal, right-hand configuration with 5-degree lead angle and neutral rake for profiling passes
• Screw-type insert clamping for secure, repeatable indexing of GP-series inserts (GPCD and GPHW compatible)
• Solid carbide and steel construction for rigidity in small-bore applications
• Coolant-through design supports chip control and extended tool life in deep-bore operations
• 4-inch maximum hole depth with 0.423-inch minimum hole diameter entry
• Insert inscribed circle of 0.156 inches suited to small-geometry profiling work

Compatibility

Compatible inserts include GPCD and GPHW styles within the GP insert family. The toolholder uses the CCPI toolholder style designation and is cross-referenced under manufacturer number E05MSGLPR5.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the turret is de-energized before mounting or indexing inserts. Confirm shank clamping torque and insert screw torque per the machine tool and insert manufacturer guidelines. Verify minimum bore clearance against the 0.423-inch minimum hole diameter before committing to a toolpath.