Versatile Compatibility: The quick-change keyless chuck accommodates various accessories with shank sizes ranging from 1 or 32inch to 1 or 8inch. Ensure precise size measurement and compatibility before purchasing. Universal 3-Jaw Design: This 3-jaw chuck is compatible with all for Dremel cordless and corded rotary tools, supporting drill bits, sanding d s, polishing wheels, and other light-duty attachments for diverse applications. Robust and Reliable Build: Engineered with a one-piece Metal structure, this chuck offers superior durability and safety compared to plastic models. The well-crafted 3-jaw design, reinforced with a built-in spring, ensures consistent stability and extended service life. Enhanced Precision and Performance: The keyless chuck significantly improves precision, securely holding small bits in perfect alignment with the tool's rotation. It maintains exceptional stability under high-speed operation, optimizing work efficiency. Wide Collet Size Options: The set includes eight sizes of brass 4485 collets: 0.8mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.4mm, 3.0mm, and 3.2mm. Confirm the required size before purchase for optimal performance. Colour:As Shown Material:Metal Package Contents: 1 x Drill Chuck Collet Set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.