Seco 02564754 Rh Dcln Indexable Turning Toolholder

Product Description

The SECO 02564754 is a right-hand DCLN-style indexable turning toolholder designed for precision external turning operations on CNC and manual lathes. Built on a 0.75 x 0.75 inch square steel shank with an overall length of 4.5 inches, it uses the Clamp Lock insert-holding method to secure CN..43.. style inserts at a negative rake angle of -6 degrees. The 95-degree lead angle positions the insert for stable, chatter-resistant cuts across a wide range of workpiece materials. Licensed machinists and CNC operators install this toolholder as a standard component in turning tool setups where rigidity and repeatable insert indexing are required.

This toolholder is rated for universal workpiece material compatibility, covering material codes H, K, M, N, P, and S — spanning cast iron, non-ferrous alloys, stainless steel, steel, and heat-resistant superalloys. It is suited for both roughing and finishing passes in production turning environments where consistent tool geometry and fast insert changeover matter. The back-of-bar to cutting edge dimension is 1 inch, which supports standard tool post and turret mounting configurations common in production shops.

Key Features

• DCLN toolholder style with right-hand cutting direction for standard external turning
• Clamp Lock (Series) insert retention for secure, repeatable indexing of CN..43.. inserts
• Negative rake geometry (-6 degrees rake angle) provides a strong cutting edge for interrupted and continuous cuts
• 0.75 x 0.75 inch steel shank delivers rigidity and fits standard tool post bores
• 95-degree lead angle reduces radial cutting forces and supports shoulder turning applications
• Universal material compatibility across steel, stainless, cast iron, non-ferrous, and superalloy workpieces

Compatibility

Accepts CN..43.. series inserts with a 0.5 inch inscribed circle. Compatible insert size code is CN43. Coolant-through is not supported on this holder.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Before changing the toolholder or insert, power down the machine spindle and confirm the turret or tool post is fully stopped and locked. Use the correct torque wrench and clamp screws specified for the CN..43.. insert style to avoid insert rocking or premature edge failure. Follow the machine tool manufacturer guidelines and applicable shop safety procedures when setting tool height and offset values.