2 Pieces Universal Keyless Chuck, Mini Change Chuck, Multifunctional Keyless Chuck, For Electric Grinder, Nailer, Engraving Machine, Black Jiujiuso The product is shipped based on the color or size of the main image of the product page. High-quality material: Our mini drill chuck is made of aluminum alloy, which is highly heat-treated, anti-corrosion, anti-rust, durable and not easy to damage. Fixed design: The micro drill is more fixed, has better rotational alignment, maintains stability and improves work efficiency. Easy to use: Just lock or unlock the drill bit, you can easily and quickly replace rotary tool parts without changing the chuck. Easy to carry: The mini drill chuck is small in size and does not take up space. Easy to carry in pockets and toolboxes. Scope of application: suitable for DremeI 4000, 400, 3000, 398, 395, 300, 285, 275, 200, 100, 8200, 800, 780 , 770, 7700, 750. Delivery quantity: Two pieces