Walter 6347708 Indexable Turning Toolholder DDQNR16-4D

Product Description

The WALTER 6347708 is an indexable turning toolholder in the DDQNR16-4D style, designed for external turning operations on CNC and manual lathes. It features a right-hand cutting direction, a clamp-style insert holding method, and a negative rake geometry that supports stable, controlled material removal. The 1 inch by 1 inch shank provides rigid setup in standard toolholding blocks. Overall length is 6 inches, with a head length of 1.42 inches. This toolholder is part of the Walter Turn series and conforms to both ANSI and ISO standards, making it a straightforward fit for shops running to either specification.

This toolholder is suited for turning applications in production and job-shop environments where consistent insert indexing and repeatable tool positioning are required. It accepts DN-style inserts with a 0.5 inch inscribed circle and an insert width of 0.61 inches, covering standard DN1504 and DN43 insert size codes. The 107.5-degree lead angle positions the cutting edge for efficient stock removal in straight turning passes. No coolant-through capability is present, so external coolant delivery should be used when the application demands it.

Key Features

• DDQNR16-4D toolholder style with right-hand cutting direction and negative rake geometry
• Clamp-style insert retention for secure holding during interrupted and continuous cuts
• Accepts DN1504 and DN43 insert size codes with a 0.5 inch inscribed circle
• 1 inch by 1 inch square shank for rigid mounting in standard tool blocks
• 107.5-degree lead angle optimized for straight external turning passes
• Conforms to ANSI and ISO standards for broad compatibility across tooling systems

Compatibility

Designed for use with DN-style indexable inserts carrying size codes DN1504 and DN43, with a 0.5 inch inscribed circle and an insert width of 0.61 inches. Part of the Walter Turn series.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before mounting or removing the toolholder. Seat the shank fully in the tool block and torque the clamping screws per the machine manufacturer's specifications. Verify insert seating and clamp engagement before taking the first cut.