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57HRC CNC Pull Stud BT40 For Milling Machine To Secure Tool Holder

Basic Information
Place of Origin: CHINA
Brand Name: QFMH
Model Number: BT30,BT40,BT50
Minimum Order Quantity: 10PCS
Price: USD 1-2/PCS
Packaging Details: PLASTIC BOX
Delivery Time: 5DAYS
Payment Terms: L/C, D/P, T/T, Western Union
Supply Ability: 1000PCS/MONTH
AppliCATEion: CNC Machine Material: 20CrMnTi;
Hardness: 54-57HRC; Pull Stud Type: CNC Pull Stud
Surface Treatment: Black Oxide Thread Size: M12
Weight: 0.1kg
High Light:

57HRC CNC Pull Stud


CNC Pull Stud BT40


Pull Stud BT40


CNC Tool Holder Accessory BT40 Pull Studs, Used In Milling Machines To Secure Tool Holders


BT40 45 Degree Collet Chucks Pull Studs ,Pull Stud is also called a rod-shaped part with a cap at one end of the metal. After penetrating into the connected component, it strikes and extrudes the other end of the rod to press and fix the component. Stainless steel BT pull stud will not cause corrosion, pitting, rust or wear. Stainless steel BT pull studs are also one of the most powerful building metal materials. Because stainless steel BT pull stud has good corrosion resistance, it can make structural parts permanent to maintain the integrity of Engineering design. Chromium stainless steel BT pull stud also have mechanical strength and high extensibility. They are easy to process and manufacture, and can meet the needs of architects and structural designers for tool parts.


CNC Tool Holder Accessory BT40 Pull Stud Products advantages
1. After heat treatment, and then quenching, cleaning, tempering, pull the nail out hard, not easy to fracture.
2. the use of flexible steel material.
3. BT conical shell cutter shank: 30, 50, 40
4. suitable milling cutter: 13mm-50mm
5. Precision is less than 0.01mm balance 8000rpm. High accuracy can also be made according to your requirements. (g6.3/12000rpm, G2.5 / 20000) 48-55hrc hardness.
6. CNC Tool Holder Accessory BT40 Pull Stud suitable for pulling the stub with the milling cutter disk is also required.





BT pull studs are commonly used in CNC milling machines to secure tool holders in the spindle. They are designed to provide a strong and secure connection between the tool holder and the spindle, ensuring accurate and stable machining operations.

BT stands for "Boring Taper," which refers to the tapered shape of the pull stud. The pull stud is inserted into the spindle and tightened using a drawbar mechanism. The tool holder is then inserted into the pull stud and secured with a retention knob.

The pull stud has a threaded end that matches the internal threads of the retention knob. When the retention knob is tightened, it pulls the pull stud and tool holder into the spindle, creating a tight and secure connection.

BT pull studs come in various sizes and configurations to fit different types of tool holders and spindles. They are typically made of high-quality steel to provide strength and durability.

Overall, BT pull studs play a crucial role in ensuring the stability and accuracy of CNC milling operations by securely holding tool holders in place.

MODEL D D1 D2 M L L1 L2 H H1
BT30 12.50 7 11 M12 43 23 18 5 2.5
BT40 17.00 10 15 M16 60 35 28 6 3
BT50 25.00 17 23 M24 85 45 35 10 5



BT-A: Central coolant without O-ring

BT-B: O-ring without central coolant

Other Model:

BT pull stud, SK pull stud, ISO7388 Pull stud, CATEE pull stud, Mazak Pull Stud, MTB Pull Stud, NT pull stud

Pull stud is mainly used for connet the tool spindle and tool holder


Contact Details

Phone Number : 13705473076

WhatsApp : +8613705473076