Seco 00042536 Msdn Neutral Turning Toolholder 1.25in Shank

Product Description

The SECO 00042536 is a neutral-hand MSDN-style indexable turning toolholder designed for external turning operations on CNC lathes and turning centers. Built on a 1.25 x 1.25 inch square steel shank with an overall length of 7 inches, it accepts SN..54. series inserts held by a Multiple Lock clamp-and-pin system. The negative rake geometry at -6 degrees provides edge strength and stability when cutting hard or interrupted materials. Licensed HVAC and machining professionals in precision manufacturing and production turning environments are the primary installers and operators of this toolholder.

This toolholder is suited for universal workpiece material applications across a broad range of material groups including ferrous, non-ferrous, stainless, heat-resistant alloys, and cast iron. It fits standard tool block setups on manual and CNC lathes requiring a 1.25 x 1.25 inch shank pocket. The back-of-bar to cutting edge dimension is 0.625 inches, and the head length is 1.61 inches, making it appropriate for close-tolerance facing, profiling, and straight turning passes.

Key Features

• MSDN neutral-hand toolholder style for straight turning and facing passes
• Multiple Lock clamp-and-pin insert retention for rigid, repeatable insert seating
• Negative rake geometry (-6 degrees) maximizes cutting edge strength on tough materials
• Accepts SN..54. series inserts with a 0.625 inch inscribed circle
• Steel shank construction for rigidity and durability in production environments
• Compatible with universal workpiece material groups H, K, M, N, P, and S

Compatibility

Designed to accept SN..54. series indexable inserts with a 0.625 inch inscribed circle. Fits standard 1.25 x 1.25 inch square shank tool blocks on CNC and manual turning centers. Manufacturer catalog reference: MSDNN205E.

Installation Notes

Installation is performed by qualified machinists or tooling setup technicians. Ensure the machine spindle is powered down and the turret or tool block is fully locked before seating or removing the toolholder. Use calibrated torque tools when tightening the insert clamp screw to avoid over-torquing the clamp-and-pin retention system. Verify shank pocket dimensions and tool offset data in the machine controller after installation before initiating a cutting pass.