MWMNN Neutral Tool Holder with 50° Angle for Economical Profiling

Overview

The MWMNN series is a specialized Neutral External Turning Tool Holder that bridges the gap between economy and versatility. Unlike standard neutral tools that use triangular inserts, the MWMNN is designed to hold the robust WNMG insert (Trigon). Featuring a symmetric 50° entering angle, this holder allows for unique profiling capabilities and large chamfering operations while utilizing the most cost-effective insert on the market.

Maximum Economy with WNMG Inserts

The standout feature of the MWMNN is its ability to use WNMG inserts. This gives machinists 6 usable cutting edges per insert (compared to 3 on a TNMG neutral tool). It provides the strength of an 80° corner for heavy cuts, combined with the versatility of a neutral holder for bi-directional machining.

Rigid M-Type Stability

The symmetric 50° design directs cutting forces in a specific pattern that requires superior holding power. The MWMNN TOOL HOLDER utilizes the M-Type Double Clamping System. The lock pin and top clamp ensure the large WNMG insert remains rigid, preventing vibration during profiling or when cutting chamfers on both sides of a workpiece using the same tool.

ISO Code Naming Rules

Here is the breakdown of the MWMNN code, highlighting its specific Neutral Trigon geometry:

FAQs 

Q1: What is the main advantage of MWMNN over MTENN?
A: Both are neutral holders, but MWMNN uses WNMG inserts (6 edges, 80° corner), while MTENN uses TNMG inserts (6 edges, 60° corner). The MWMNN is much stronger due to the 80° insert corner, making it better for heavier cuts, although MTENN can enter tighter profiles.

Q2: What is the 50° entering angle used for?
A: The 50° angle allows for substantial clearance when profiling complex shapes. It is also frequently used for specific chamfering operations where a standard 45° or 60° tool cannot meet the print requirement.

Q3: Is the MWMNN directional?
A: No, it is a Neutral tool (indicated by the last “N” in the code). It is symmetric and can be used to cut in both Left and Right directions (bi-directional), or for plunge cutting.