Seco 02569284 Dcln Indexable Turning Toolholder 1x1 Shank

Product Description

The SECO 02569284 is a right-hand DCLN-style indexable turning toolholder designed for external turning operations on CNC and manual lathes. It features a 1 inch by 1 inch square shank, a 6 inch overall length, and a negative rake angle of -6 degrees, making it well suited for heavy interrupted cuts and harder workpiece materials. The clamp lock insert holding method secures CN-style inserts with a 0.5 inch inscribed circle. Machining professionals and toolroom technicians working in production or job-shop environments will find this holder compatible with a broad range of workpiece materials under the universal material classification.

This toolholder is intended for external turning applications on lathes equipped with standard square-shank tool blocks or turret stations accepting 1 inch shank tooling. The 95-degree lead angle geometry promotes chip clearance and reduces radial cutting forces during straight turning and light facing passes. It is classified for use across multiple primary workpiece material groups including cast iron, non-ferrous, stainless steel, steel, and high-temperature alloys corresponding to material codes H, K, M, N, P, and S. Coolant-through capability is not included in this holder.

Key Features

• DCLN toolholder style with 95-degree lead angle for straight turning and chip clearance
• Negative rake angle (-6 degrees) suits interrupted cuts and harder materials
• Clamp lock insert retention method provides rigid, repeatable insert positioning
• Accepts CN-style inserts with 0.5 inch inscribed circle including CNGA, CNGR, CNMA, CNMG, CNMM, and CNMP
• Steel toolholder construction for durability in production turning environments
• 1 inch by 1 inch shank fits standard square-shank lathe tool blocks and turret stations

Compatibility

Compatible with CN-style inserts bearing the CN..43.. designation, including CNGA, CNGR, CNMA, CNMG, CNMM, and CNMP inserts with a 0.5 inch inscribed circle. Designed for use in right-hand cutting direction on lathes accepting 1 inch square-shank toolholders.

Installation Notes

Installation is performed by machinists or toolroom technicians following standard lathe toolsetting procedures. Ensure the machine spindle is fully stopped and all energy is locked out before mounting or changing toolholders. Secure the shank fully within the tool block or turret pocket to the depth specified by the machine manufacturer to prevent deflection. Verify insert seating and clamp screw torque according to the insert manufacturer's guidelines before resuming cuts.