4486 Multi Chuck Set 15pcs, Collet Nut Kit, Quick Change Keyless Rotary Tool Accessory Replacement 0.8-3.2 mm Compatible with Dremel 3000 4000 7700 8200 (M7x0.75 mm long)

Safe and Durable Chuck: Made from alloy material, the one-piece construction design and integrated spring make our 3-jaw chuck safer and more durable than plastic models. It can hold tiny drill pins more securely at high speeds, and the quick-change keyless drill chuck can hold a variety of mini pins from 1/32" to 1/8", eliminating the need for frequent rotary tool changes.

7 mm Collar Nut: Made Made of alloy steel, these nuts are wear-resistant, more durable, and safer than plastic alternatives. Combined with brass collars, they offer exceptional adaptability and improved accuracy for precision work. Brass Collars: Constructed from high-quality brass, these nuts are robust, strong, and bend-resistant. The unique 4-prong design ensures a powerful grip, holding pins firmly in place. A range of clamping diameters adds to their versatility, making them suitable for a wide range of applications. Multiple Sizes Available: The set includes a variety brass drill bit sizes, from 1/8" to 1/50" (0.5 mm to 3.2 mm) to meet different user needs and reduce the hassle of purchasing additional accessories

Highly compatible: Compatible with all Dremel cordless and corded rotary tools (including drills, sanding drums, pump wheels and other light accessories). Compatible with Dremel rotary tools: 200, 285, 300, 3000, 395, 398, 400, 4000, 4200, 4250, 4300, 8000, 8100, 8200, 8220, 8260

Multifunctional: This drill collet set is compatible with most Dremel rotary tools on the market. Whether it's a drill, polishing wheel, or cutting wheel, etc., it's easy to handle. Suitable for electric grinders, drills, flexible shaft extensions, engraving machines, and other polishing and sanding tools.