Seco 02569287 Lh Dwln Indexable Turning Toolholder

Product Description

The SECO 02569287 is a left-hand DWLN-style indexable turning toolholder designed for external turning operations on CNC lathes and manual turning centers. It features a negative rake angle of -6 degrees and accepts WNMG 432 inserts, secured via a dual clamp holding method for rigid, repeatable positioning. The shank measures 1 inch wide by 1 inch tall with an overall length of 6 inches, making it a standard square-shank toolholder suited for a range of lathe tool post and turret setups. Licensed machinists and CNC turning specialists are the primary installers of this toolholder.

This toolholder is built for turning applications across a wide range of workpiece materials, including steel, cast iron, stainless steel, aluminum, non-ferrous metals, and high-temperature alloys, reflected by its universal material compatibility codes H, K, M, N, P, and S. It is used in both production and job-shop environments where consistent insert positioning and dependable clamping are required. The left-hand cutting direction suits specific tool path orientations common in facing and turning passes where right-hand tooling is not practical.

Key Features

• Left-hand cutting direction with DWLN toolholder style for specific lathe orientation requirements
• Negative rake angle of -6 degrees for improved edge strength on harder workpiece materials
• Dual clamp insert holding method provides secure, vibration-resistant clamping of WNMG 432 inserts
• 1 inch x 1 inch square shank for compatibility with standard lathe tool posts and turret stations
• Universal primary workpiece material compatibility covers ferrous, non-ferrous, and superalloy materials
• No coolant-through design simplifies setup in standard non-coolant-fed tool stations

Compatibility

Accepts WNMG 432 inserts with a 0.5 inch inscribed circle. Compatible insert size codes are WN43 and WN44. Designed for use in standard 1 inch x 1 inch square shank tool posts and turret stations on CNC and manual turning centers.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the control is placed in an E-stop or locked-out state before changing toolholders or inserts. Torque the insert clamp screw according to the insert manufacturer's specification printed on the insert packaging or tooling documentation. Confirm tool overhang, center height, and cutting direction orientation before resuming any cutting operation.