Description: You can use this extension rod for a long time because of its resistance to oxidation and corrosion; and it is non-slip because of its threaded design. A practical way to improve your work efficiency is with this extension pole; and it is made of high quality material, making it hard and not deformed. Constructed of spring steel material, it is sturdy and solid. This product contains an extension rod and a collet. It is suitable for router bit extensions for wood trimming, milling, and engraving machines. Item Name: Cutter Extend Rod Material: Spring Steel Features: Anti-rust, Effective, High Hardness Size Details: Collet Package Size: 2.5cm x 2.5cm x 8cm/0.98" x 0.98" x 3.15" (Approx.) Cutter Extend Rod Package Size: 9.6cm x 3cm x 3cm/3.78" x 1.18" x 1.18" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Collet 1 x Cutter Extend Rod