SK tool holder is a high-speed tool holder, which is a model of BT tool holder. The spindle taper holes of machining centers are usually divided into two categories, namely the general system with a taper of 7:24 and the HSK vacuum system with a taper of 1:10. Universal tool holders with a taper of 7:24 usually have five standards and specifications, namely NT (traditional type), DIN 69871 (German standard), IS0 7388/1 (international standard), MAS BT (Japanese standard) and NSI/ASME (American standard). At present, the most commonly used tool holders in China are DIN 69871 type (JT) and MAS BT type.
There are many types and models of BT tool holders. The SK tool holder is a high-speed tool holder, which is a type of BT tool holder. The main differences between sk tool holders are:
1. The difference in appearance size.
2. The rotation speed is higher, up to 40,000 rpm, suitable for high-speed processing.
3. Comes with SK nut and SK collet.