ITEM NAME:3pcs/set High Precision Collet Chuck Heads for Engraving Carving Machine Product Description Description: 3pcs/set High Precision Collet Chuck Heads for Engraving Trimming Carving Machine Electric Router Milling Cutter Woodworking Specifications: Product material: Steel Product weight: 8g/pc Product size: as shown Chuck head range: 6mm/0.24",6.35mm/0.25", 8mm/0.31" Packaging: inner with independent white boxes and outer with OPP bags. Scope of application: carving machine, trimming,milling cutter machine, installation and transformation of wood milling engraving head, and increasing the use scope of fixed carving head. Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement. Included: 3 x Chuck Heads.Scope of application: carving machine, trimming,milling cutter machine, installation and transformation of wood milling engraving head, and increasing the use scope of fixed carving head. Included: 3 x Chuck Heads.