Jual Pullstud BT40 with coolant hole ( for slim chuck )

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BT40 pull studs with coolant holes (also known as through-tool or through-spindle coolant holes) are essential for delivering high-pressure coolant directly through tool holders like slim chucks. These studs are standardized by MAS 403-BT or DIN 69872-A specifications but differ primarily by their pull angle (45°, 60°, or 90°) based on the machine spindle requirements. 

Most through-coolant BT40 pull studs follow these standard dimensions:

• Thread Size: M16 x 2.0.
• Head Diameter: 15 mm.
• Neck Diameter: 10 mm.
• Overall Length (L): ~60 mm (standard) or ~54 mm (DIN-style).
• Coolant Hole Diameter (F): Typically 3 mm to 4 mm. 

For high-precision slim chucks (like Nikken Slim Chucks), using a through-coolant pull stud allows for:

• High-Pressure Delivery: Ensures coolant reaches the tool tip, even in deep cavities where the "slim" profile of the chuck is necessary.
• Chip Evacuation: High-pressure flow helps flush chips away from the cutting edge.
• Compatibility: Ensure the pull stud includes an O-ring if your machine requires a sealed connection to prevent coolant leaks back into the spindle. 

• Regional (Indonesia): Available via Tokopedia or specialized distributors like CV Lion Machine Solution.