BT SK Collet Chuck (JIS-B 6339)

Product Description

BT collet chuck holder is a standardized tool interface widely used in CNC machine tools (such as machining centers and milling machines), which is mainly used to hold cutting tools such as milling cutters, drill bits and taps. Its name "BT" comes from Japanese standard (JIS B6339). It adopts 7:24 taper design, which has the characteristics of high rigidity, high precision and quick tool change. It is an ideal choice for high-speed machining and heavy cutting scenes.

Product Schematic

Product Parameter

Why Choose JieHe

Our BT collet tool holder has a large contact area with the conical surface, strong radial cutting resistance, suitable for heavy cutting and high-speed machining, and the dynamic balance level can reach G2.5, which reduces centrifugal vibration during high-speed operation. Adapt to the standard ER collet, support the rapid switching of multi-size tools, and reduce downtime. Compatible with mainstream CNC systems.

Product Advantages

Optional Accessories

Our product offers a variety of optional configurations. Optional accessories such as SK Collet  and SK Spanner ， we can meet users' diverse requirements regarding precision and stability. Additionally, a wrench is provided to assist users with product installation and maintenance, enabling personalized product configurations.

The installation steps of an ER collet chuck

Quality Inspection

Jiehe Machinery owns a leading tool holder production factory and inspection and testing center in China, with manufacturing capabilities ranking among the top. Our core production and testing equipment include GROB, TAKISAWA, Doosan, HAIMER, KELCH, ZOLLER, Mitutoyo, etc., and we also possess the full range of standard tool holders and tool holder gauges from German Diebold. The use of these equipment further ensures the superiority of our production efficiency and product quality.

We have an intelligent production line, which ensures the stability of product quality and greatly improves production efficiency.

Photographs of Products in the Workshop

Our workshop maintains a robust inventory of semi-finished products, ensuring a steady supply and enabling us to meet tight deadlines with speed and efficiency. With streamlined production processes and a well-organized supply chain, we guarantee quick turnaround times without compromising on quality. Our experienced team and state-of-the-art facilities allow us to respond swiftly to customer demands, offering flexible solutions and fast delivery to keep your operations running smoothly.

Factory Displayment

Jining Jiehe Machinery Co., Ltd., established in 2000, is a national high-tech enterprise and a provincial-level technology-driven and innovative company. Specializing in CNC machine tool accessories, the company offers over 1,000 product varieties, with 60% of products exported. With over 200 CNC machines and a team of more than 100 employees, Jiehe has earned over 30 national patents and is recognized for its well-known trademarks such as CNCJiehe, Sun Moon Lake, and Goose. The company regularly participates in international exhibitions across Beijing, Shanghai, the U.S., Germany, Italy, and Tokyo, building a strong global market presence. By benchmarking top companies in Germany and Japan, Jiehe has achieved rapid development and established a comprehensive production and R&D base with subsidiaries in Jining, Shandong, Suzhou, and beyond.