Material: high quality steel, good flexibility and wear resistance. FunctionPortable, high precision, tight and stable clamping, improve work efficiency. ApplicationSuitable for engraving machine, wood milling cutter, engraving machine, etc. Size: 8mm/6.35mm/6mm. DeliveryYeurie 6 pieces of router collets (2 pieces per size). Description: Good flexibility and wear resistance. High precision electric milling chuck for woodworking. Fine workmanship, stable performance. Material: Carbon Steel. Quantity: 6 pieces. Size: 8 mm/6.35 mm/6 mm. Scope of delivery: 6 clamping adapters (2 pieces per size). Note: 1. Due to various factors, light, shooting angle, display color difference, product images are for reference 2. Since measurements are taken by hand, the sizes indicated may vary slightly.