Kennametal 1096244 Mdjn Indexable Turning Toolholder

Product Description

The KENNAMETAL 1096244 is a right-hand MDJN-style indexable turning toolholder engineered for negative-rake external turning operations on CNC lathes and manual turning centers. Built on the Kenloc clamping platform, it secures DN..43. series inserts using a combination clamp and screw holding method, providing rigid insert retention under interrupted cuts and continuous turning loads. The 1 inch by 1 inch steel shank fits standard OD turning tool stations, and the 5 inch overall length suits the majority of production turning setups. Licensed machinists, CNC operators, and toolroom technicians are the primary installers and users of this holder.

This toolholder is suited to production and job-shop turning environments where negative-rake DN..43. inserts are the standard insert geometry. The 3-degree lead angle geometry promotes controlled chip flow and helps reduce cutting forces on the workpiece. With a head length of 1.24 inches and a back-of-bar-to-cutting-edge distance of 1.25 inches, the holder positions the cutting edge consistently for repeatable depth-of-cut setup. It is appropriate for steel, cast iron, and similar ferrous turning applications where rigid tooling and predictable insert seating are required.

Key Features

• Right-hand MDJN style with 3-degree lead angle for controlled chip direction
• Kenloc clamp-and-screw insert holding method for rigid, repeatable seating
• Accepts DN..43. series negative-rake inserts with 0.5 inch inscribed circle
• 1 inch x 1 inch square steel shank fits standard OD turning tool blocks
• 5 inch overall length with 1.24 inch head length for versatile reach
• No coolant-through feature — external coolant delivery required

Compatibility

Designed for use with DN..43. series indexable inserts (complete compatibility designation DN.. 432) in standard 1 inch square shank OD turning tool stations on CNC and manual lathes.

Installation Notes

This toolholder is installed by qualified machinists or CNC setup technicians. Before mounting or indexing inserts, confirm the machine spindle is stopped, the axis is locked, and the turret or tool block is de-energized per shop lockout-tagout procedures. Seat the toolholder fully into the tool block and torque the clamping screws using the insert and holder manufacturer specifications on record for the Kenloc system. Do not use damaged inserts or mix insert geometries not rated for the DN..43. seat.