ITEM NAME:High Precision Collet Chuck Head for Engraving Trimming Carving Electric Router Product Description Description: High Precision Collet Chuck Head for Engraving Trimming Carving Machine Electric Router Milling Cutter Woodworking Specifications: Product material: Steel Product weight: 7g Product size: 20*8*6.35mm/0.79*0.31*0.25" Chuck head length: 20mm/0.79" Chuck head range: 8mm-6.35mm/0.31-0.25" 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: 1 x Chuck Head.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. Chuck head range: 8mm-6.35mm/0.31-0.25".