[PRECISION ENGINEERED DESIGN] This NT40 milling tool holder features a precision matched design that ensures zero gap between the cutter head and holder, delivering exceptional accuracy for plane milling operations. The tight tolerance construction eliminates vibration during high-speed machining, resulting in smoother surface finishes and extended tool life.
[SECURE FASTENING SYSTEM] Equipped with a robust central screw and bilateral keyway system, this tool holder provides superior clamping force to keep your face milling cutter head firmly in place. Each shank includes a high-quality screw and baffle plate assembly for quick and secure installation of various cutter head sizes.
[ADVANCED MATERIAL TECHNOLOGY] Crafted from premium 42CrMo alloy steel with precision female threads that are finely turned after heat treatment. The central through hole design facilitates efficient coolant flow while enhancing shock absorption during heavy-duty machining operations.
[ENHANCED DURABILITY] The entire handle undergoes specialized heat treatment and fine grinding processes to achieve HRC43-48 hardness, providing exceptional thermal strength and oxygen resistance. The surface treatment prevents and , ensuring long-term reliability in demanding workshop environments.
[VERSATILE COMPATIBILITY] Designed with NT40 taper shank specification and M16x2.0 tail thread, this milling tool holder offers broad compatibility with various CNC machines and milling equipment. The balanced design accommodates cutter diameters up to 63mm (2.5in) for diverse metalworking applications.

Spec:
Item Type: NT40 Milling Tool Holder
Model: NT40-FMB22-45
Material: 42CrMo
Purpose: Used to connect the cutter head
Product Hardness: HRC43-48
Cutter Diameter: Approx. 48mm / 1.9in, 63mm / 2.5in
Tail Thread: M16 x 2.0
The Total Length of the Product (Without Screws): Approx. 155mm / 6.1in
Taper Shank Type: NT40

Package List：
1 x