3.17mm mini drill chuck set for 550 DC motor Premium 3.17mm mini drill chuck set, engineered for seamless integration with 550 DC motors. Crafted for precision and stability, it delivers superior performance in drilling, engraving, and other high-accuracy tasks, making it an essential tool for professionals and DIY enthusiasts. Specifications : Material: Brass, ensuring durability and corrosion resistance. Chuck Dimensions: Length: 28mm Diameter: 16.5mm Shaft hole: 3.17mm Clamp Shaft Hole Diameter: 3.17mm (suitable for 550 DC motors). Collet Sizes: 0.5mm, 1.0mm, 1.5mm, 2.5mm, and 3.0mm, allowing compatibility with a variety of drill bits. Allen Key: Included for secure tightening and installation. Application: Ideal for drilling, engraving, and precision DIY projects.
