MSDNN Turning Tool Holder | Neutral 45° M-Type Holder for DNMG, DNMA & DNMM Inserts

High-Stability MSDNN Neutral Tool Holder with 45° Lead Angle

The MSDNN tool holder is a specialized choice within the indexable turning tool holders category, optimized for high material removal rates. Its neutral 45-degree geometry makes it a superior lathe turning tool holder for heavy roughing, as the angle protects the insert tip and distributes heat effectively. Whether you are performing straight turning or creating 45-degree chamfers, this series provides the rigidity expected from a professional tool holder for turning.

Multi-Insert Compatibility: DNMG, DNMA, and DNMM

The MSDNN is precision-engineered to accommodate 55-degree diamond inserts, allowing you to adapt your setup to specific workpiece materials:

• DNMG Inserts: The primary choice for general steel and stainless steel applications, often used in a standard dnmg holder setup.

• DNMA Inserts: Designed for cast iron machining, offering the flat-top stability required for brittle materials.

• DNMM Inserts: The reinforced edge option for heavy roughing and interrupted cuts within the dnmg insert holder family.

Rigid M-Type Multi-Lock Clamping System

Stability is paramount when utilizing a dnmg neutral tool holder for heavy cuts. The MSDNN features the industrial-grade M-type clamping mechanism, which secures the insert via both a top clamp and a center pin. This double-locking action prevents insert shifting under high-torque conditions, ensuring that your dnmg tool holder maintains consistent accuracy and delivers an excellent surface finish.

Specifications Table

Q: What is the advantage of the 45° angle on a dnmg neutral tool holder?
A: The 45° angle on the MSDNN significantly reduces the chip thickness and balances cutting forces. This allows for much higher feed rates compared to 95° holders, making it an excellent dnmg tool holder for high-efficiency roughing and chamfering.

Q: Can I use the MSDNN for profiling toward a 90-degree shoulder?
A: No. Due to its 45-degree approach angle, the MSDNN will interfere with a 90-degree shoulder. It is designed specifically for longitudinal turning, tapering, and chamfering. For shoulders, a 93° dnmg holder like the MDJNR is recommended.

Q: How does the M-type clamp improve performance in a dnmg insert holder?
A: The M-type system pulls the insert down and back into the pocket simultaneously. This “Multi-lock” security is vital for indexable turning tool holders during heavy-duty cycles, as it prevents micro-vibrations that cause carbide chipping and premature tool failure.