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NT40 OZ25-100 CNC Milling Machine Heavy Duty EOC Collet Chuck

Basic Information
Place of Origin: CHINA
Brand Name: QFMH
Model Number: NT30,NT40,NT50
Minimum Order Quantity: 10PCS
Price: USD 20/PCS
Packaging Details: PLASTIC BOX
Delivery Time: 5DAYS
Payment Terms: L/C, T/T, Western Union
Supply Ability: 1000PCS/MONTH
AppliCATEion: CNC Milling Machine Heavy Duty Coating: TiAlN
Cutting Direction: Right Hand Material: 20CrMnTi
Number Of Flutes: 2 Overall Length: 100
Point Angle: 118 Shank Type: DIN2080
Size: OZ25 Toolholder Type: NT Tool Holder

CNC Milling Machine NT Heavy Duty OZ EOC Collet Chuck ,OZ Collet Chucks are used with DIN 6388 OZ Collets to clamp cutting tools with straigh shanks. DIN6388 OZ Collets are including DIN6388 A OZ collets and DIN6388B OZ collets, the most common one is OZ B type collets. OZ collets are also called EOC Collets, so, if any one who ask for EOC Collet, it refer to the same collets. Spare Parts includs OZ Collet, OZ Nuts and hook spanner wrench. OZ nuts are bearing nuts. Wrenches we also have both, one is Precision Cast Wrenches, the other is normal forging spanners. We prefer the casted spanner which are with better outlook and higher hardness.DIN2080 OZ collet chuck NT tool holder , DIN6388 OZ collet clamping straight shank tools of various sizes, high speed and high precision machining.Mechanical spindle and cutting tools and other accessories.High Precision NT shank Tool Holder ,balanced G6.3 or G2.5 For choose.


OZ Collet Chuck With NT30 NT40 NT50 Spindle Tool Holder
1.NT OZ Collet chuck The material: 20CrMnTi
2.NT OZ Collet chuck The Taper: AT3
3.NT OZ Collet chuck The precision: 0.005mm
4.NT OZ Collet chuck The hardness: 52-58HRC
5.NT OZ Collet chuck Surface: Black
6.NT OZ Collet chuck The standard: DIN2080



heavy-duty EOC collet chuck is a tool used in machining operations to securely hold and grip workpieces. It is designed to withstand high forces and heavy-duty appliCATEEions.

The EOC (External Oil Coolant) collet chuck is a type of collet chuck that incorporates an oil coolant system. This system helps to dissipate heat generated during machining, ensuring better tool life and higher machining efficiency.

The heavy-duty EOC collet chuck is typically made from high-quality materials such as hardened steel or alloy steel to provide superior strength and durability. It is capable of holding large and heavy workpieces securely, allowing for precise and accurate machining.


This type of collet chuck is commonly used in industries such as automotive, aerospace, and heavy machinery manufacturing, where heavy-duty machining operations are required. It is compatible with various machine tools, including lathes, milling machines, and CNC machines.

Overall, a heavy-duty EOC collet chuck is a reliable and robust tool that provides excellent gripping power and cooling capabilities for heavy-duty machining appliCATEEions.


OZ collet chuck is a type of collet chuck that is commonly used in milling machines. It is designed to hold and secure cutting tools such as end mills, drills, and reamers in place during milling operations. OZ collet chuck is named after its collet type, which is known as the OZ collet. This collet has a cylindrical shape with a series of evenly spaced slots around its circumference. These slots allow the collet to expand and contract when tightened or loosened.


Model Clamping Range L D G
NT40-OZ25-63 3-25 63 60 M16
NT40-OZ25-100 3-25 100 60 M16
NT40-OZ32-90 6-32 90 72 M16
NT50-OZ25-63 3-25 63 60 M24
NT50-OZ25-100 3-25 100 60 M24
NT50-OZ32-70 6-32 70 72 M24

Contact Details

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WhatsApp : +8613705473076