Function: 1. Made of the highest quality material, sturdy and durable to use. 2. Easy to install and convenient to use. 3. With good flexibility, it helps to do grinding work much easier and easier. 4. Widely used in drilling, engraving, milling, grinding. 5. Precision engraving, cannot be used do high strength grinding and polishing, blade diameter must not exceed 8mm. Specification: Characteristics: 1. Made of the highest quality material, sturdy and durable to use. 2. Easy to install and convenient to use. 3. With good flexibility, it helps to do grinding work much easier and easier. 4. Widely used in drilling, engraving, milling, grinding. 5. Precision engraving, cannot be used do high strength grinding and polishing, blade diameter must not exceed 8mm. Specification: Item Type: 6mm Flexible Drill Chuck Roller Material: Stainless Steel Application: electric grinder with three-jaw handle, electric drill. Packing: opp bag Length of flexible roller: 1,05 m / 41,3 inch Handle Thread Size: 8*0.75mm Input diameter of the mounting roller: 6mm Output mount can be replaced: 3,2mm (maximum), flexible shaft is equipped with 3,0mm core List of packages: 1 * flexible roller