Specifications:The extension rod made of high-quality materials, strong and durable.It can be used for automobile manufacturing, mold manufacturing, machinery manufacturing, etc.This is a great accessory for engraving machine.Item Name: Extension RodMaterial: Alloy SteelFeatures: Durable, Engraving Machine Accessory, High Strength1/4" Size: 9cm x 2cm x 2cm/3.54" x 0.79" x 0.79" (Approx.)1/2" Size: 8.4cm x 2.4cm x 2.4cm/3.31" x 0.94" x 0.94" (Approx.)8mm Size: 8.7cm x 2cm x 2cm/3.43" x 0.79" x 0.79" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Extension Rod