Precision Adapter Collet Shank Router Adapters Holder For Woodworking ToolFeature:Processing by heat treatment and precise grinding, good flexibility and wear resistance9 pieces of various sizes of adapters, apply to different specifications of the bit tool and chuckHigh precision, high strength and hardness, tight and stable clamping, good to operateIdeal collet or chuck conversion suitable for engraving machine and wood routerEasy to use, just slide it into your current collet and tighten as usual Notice:Please allow 1-2cm error due to manual measurement.Pls make sure you do not mind before you bid.The colors may have different as the difference display,pls understand.If you have any problems, please contact us before open the dispute or give negative feedback,we will try our best to help you,thank you Package Content:9 x Router Bit Chuck Adaptors