Constructed from 65Mn steel for exceptional durability and longevity in demanding machining environments. Compatible with MT2, MT3, and MT4 threads, offering versatility for various drilling and milling applications. devised for use with portable drilling machines, bench drilling machines, lathes, and CNC engraving machines. Compact and sturdy devise ensures a secure grip on tools, enhancing precision and performance during operations. Includes 1 precision collet, making it an essential addition to your workshop for improved machining efficiency., Manufacturer: TNGYTY