Aug. 18, 2026
Our CNC pull studs, also known as retention knobs, are critical connecting components for tool holders on CNC machining centers. Compatible with BT30, BT40, BT50, ISO30/40/50, CAT, SK and Mazak standard tool holders.
✅ Core Advantages
Material: 40Cr alloy steel, quenched & tempered, hardness HRC 48–52, excellent wear resistance
Precision machining: tight tolerance, stable clamping, reduce tool vibration during high-speed cutting
Optional structure: standard solid type & through coolant hole type for internal cooling machining
Multiple angles: 45° / 60° pull studs to match different spindle grippers
Surface treatment: black oxide or polishing, anti-rust and long service life
Full specifications in stock; custom drawing machining supported
Widely used in vertical machining centers, horizontal machining centers, CNC milling machines, suitable for all kinds of tool holders to realize reliable connection between spindle and cutting tools.
Available models: BT30, BT40, BT50, ISO30, ISO40, ISO50, CAT40, CAT50, SK40, SK50, Mazak40, Mazak50. Samples available, bulk factory competitive price.
Sales Manager: Sophie
Email: ht08@ht-tools.net
wechat/whatsapp: +8615288891922
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Contact Us
Tel: +86 534 425 1888
Mob/WhatsApp/Wechat: +86 137 9138 1619
E-mail: jacksun@ht-tools.net
Add.:East Area of Economic Development Area, Pingyuan County, Shandong Province. China 253100
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