3pcs/4pcs M17 6/635/8mm Collet Chuck Adapter With Nut Engraving Trimming Machine Router Accessory Collet Chuck Adapter Features : It's split bushing converters for multiple purposes of chuck or collet sutability. Made of carbide, high strength and hardness. Processing by heat treatment and precise grinding, to use. Used for chuck conversion of trimming, engraving machines. A perfect woodworking tool. Specification : Product Name: Collet Chuck Adapter Material: Carbon Steel Chuck Size: 8mm,6.35mm,6mm Colors: As pictures shown Nut Size:M17*1mm Suitable for engraving machine, wood router. Collet Chuck Adapter only, other accessories demo in the picture is not included. Package Content: Package 13 x Collet Chuck Adapter1xNut Package 13 x Collet Chuck Adapter Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. _x000D_