Kennametal 1095910 Indexable Profiling Toolholder Internal

Product Description

The KENNAMETAL 1095910 is an internal indexable profiling toolholder designed for boring and profiling operations on CNC lathes and turning centers. Built to the Top Notch Profiling Boring Bar series, it features a 1-inch round shank, a 12-inch overall length, and a 5-degree lead angle with neutral rake geometry. The left-hand configuration and A-NKLC toolholder style make it suited for specific bore-entry orientations in tight or deep-bore applications. A coolant-through port with a 1/4-18 NPT thread supports chip evacuation and tool life during continuous cuts. Machining professionals and toolroom technicians working with steel and similar materials will find this holder a direct-fit solution for demanding internal profiling work.

This toolholder is intended for internal turning and profiling applications where a minimum hole diameter of 1.3 inches can be achieved. It accepts NP.. series inserts, specifically the NP.. 51R compatible insert with a 5/8-inch inscribed circle, and is cataloged under the Kennametal Top Notch Profiling Boring Bar series. Typical use cases include finish boring, contour turning, and internal profile generation on production or job-shop CNC turning equipment. The steel construction provides rigidity for interrupted cuts and general internal profiling tasks.

Key Features

• Internal toolholder with left-hand orientation and A-NKLC style designation
• 5-degree lead angle with neutral (0-degree) rake angle for controlled chip formation
• 1-inch shank diameter and 12-inch overall length for reach into deep bores
• Minimum hole diameter of 1.3 inches for use in smaller internal bore applications
• Coolant-through capability via 1/4-18 NPT threaded port for improved chip flushing
• Clamp-style insert holding method for secure, repeatable insert indexing

Compatibility

Designed to accept NP.. series inserts, with complete insert compatibility listed as NP.. 51R featuring a 5/8-inch inscribed circle. This toolholder is part of the Kennametal Top Notch Profiling Boring Bar series and carries the manufacturer reference number A16NKLCR/L05.

Installation Notes

Installation and setup should be performed by a qualified machinist or toolroom technician familiar with CNC turning toolholder mounting procedures. Ensure the machine spindle and turret are fully powered down and locked out before changing or indexing inserts. Verify shank clamping torque against the machine tool manufacturer specifications for 1-inch round-shank holders. Confirm coolant line connection compatibility with the 1/4-18 NPT port before enabling through-tool coolant flow.