9Pcs/Set Conversion Chuck Cnc Router Bit Tool Milling Cutter Adapter Collet Engraving Tool Woodworking Cutter Tool

100% new and high quality. Simple construction good operation. Spring steel material extra long life good flexibility and resistance to abrasion. Strong and stable support high precision. For drills knife engraver reamer etc. colour:Black + gray Material:metal Package Contents: 9 x Milling cutter conversion chucks Only the above package content other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.