1/4" 8mm 12mm 1/2" Shank 6mm Shank Router Bit Extension Rod Collet Engraving Machine Extension Milling Cutter for Wood

Material: carbon steel, Application: used for lengthening the handle of milling cutter, carving machine trimming machine accessories Package include: 1 PC x Router Bit Adaptor Note: the rotation speed should be slow at the beginning of use. When the rotation is stable, it will speed up slowly. If it is used too fast according to the inertia, it will cause the machine to shake Pls make sure the router collet extension be properly assenbled. Please make a note that extension shank should be secured tightly; while collet nut should be tightened only with the same pressure as any router collet. Please allow 1-3mm differs due to manual measurement. Start slowly, wait for the balance to improve, you can slowly accelerate,