Features Durable Hard Alloy Construction - Made from high-strength hard alloy, this collet extension rod offers exceptional durability and resistance to breakage during demanding tasks Powerful Clamping Force - Engineered to provide an extremely strong clamping force, ensuring stability and precision while using your engraving or milling tools Enhanced Engraving Distance - This extension rod increases the distance between the edger and drill bit, allowing for more versatile and suitable engraving applications Flexible Shank Length - Designed to extend the shank length of router bits, it provides greater flexibility for various woodworking projects and intricate designs Multiple Shank Sizes Available - Choose from 1/4", 8mm, or 1/2" shank options, making it easy to find the perfect fit for your trimmer or engraving machine Features: 1、Made of hard alloy, high hardn, high strength, not easy to break. 2、With extremely powerful clamping force to ensure stability during using. 3、Can extend the distance between the edger and the drill bit of the engraving machine, making the engraving distance more suitable. 4、Extend the shank length of router bit and make your woodworking project more flexible. 5、1/4 shank, 8mm shank and 1/2 shank for your choice, easy to use. Specification: Item Type: Trimmer Extension Rod Material: Cemented Carbide Optional Milling Cutter Extension Rod: 1/4 Shank, 1/2 Shank, 8mm Shank Optional Weight: 1/4 Shank: Weight: 107 g / 3.8 oz(approx.) 8mm Shank: Weight: 84 g / 3 oz(approx.) 1/2 Shank: Weight: 131 g / 4.6 oz(approx.) Package List: 1 x Extension Rod Package List 1 x Extension Rod