1.The M8 metal collect nut is made of alloy material, much more durable and wear-resistance than plastic nuts. The collect nut is used in conjunction with brass collect, improving the accuracy of installation and use, maintaining the stability of work efficiency.2.This drill chuck set is compatible with all Dremel rotary tools and Dremel flex shaft. Note: The drill chuck collect set is not fit for discontinued Models 1, 2 and Series 1, earlier versions of discontinued Models 260, 270, and 280.3.The drill collect set replacement for Dremel are made of quality brass, featuring in durability and wear resistance. The 4485 brass collects have 10 sizes: 0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.4mm, 3.0mm, 3.2mm for a variety of applicat.
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