Kennametal 1875146 Lh Dcln Indexable Turning Toolholder

Product Description

The KENNAMETAL 1875146 is a left-hand DCLN-style indexable turning toolholder designed for negative-rake insert geometry. Built on the Kenclamp clamping system, it accepts CN..43. series inserts with a 1/2-inch inscribed circle. The steel shank measures 1.25 inches wide by 1.25 inches tall with an overall length of 6 inches and a head length of 1.25 inches. The back-of-bar to cutting edge distance is 1.5 inches. This toolholder is installed by machinists and toolroom technicians on CNC and manual lathes where left-hand cutting operations are required.

This toolholder is suited for external turning operations on horizontal lathes and turning centers that require a left-hand approach angle. The 5-degree lead angle positions the insert for controlled chip flow and consistent depth-of-cut engagement. Negative-rake insert geometry provides edge strength for interrupted cuts and harder workpiece materials. The Kenclamp clamping method secures the insert firmly during high-feed passes. No coolant-through feature is present, so external coolant supply is standard for this configuration.

Key Features

• Left-hand DCLN toolholder style for left-hand turning operations
• Negative-rake geometry for improved insert edge strength on demanding cuts
• Kenclamp insert holding method for rigid, repeatable insert seating
• Accepts CN..43. inserts with a 0.5-inch inscribed circle
• Steel shank construction with 1.25 x 1.25 inch cross-section and 6-inch overall length
• 5-degree lead angle for controlled chip flow and cutting engagement

Compatibility

Designed to accept CN..43. series indexable inserts, with complete insert compatibility listed as CN.. 432. Verify insert size and geometry against machine tool requirements before ordering.

Installation Notes

This toolholder is installed by qualified machinists or toolroom personnel. Before mounting or changing inserts, ensure the lathe or turning center is fully powered down and the spindle is locked. Secure the shank in the tool post or turret to the machine manufacturer's specified clamping torque using appropriate toolholder fasteners. Handle indexable inserts with care — sharp cutting edges present a laceration hazard during installation and removal.