[Package Contents] You receive 2 silver nuts, 2 British 1/32 to 1/8 inch 4486 model 3-jaw chucks, 10 brass collets (10 sizes), 1 wrench, and 1 L-shaped wrench. [Materials] The drill chuck collet set includes brass collets, alloy chucks, and nickel-plated brass nuts, offering durability, safety, and stability. Resistant to deformation, breakage, and wear, it ensures a long service life. [Wide Compatibility] Versatile and easy to install, this quick-change keyless chuck collet set is compatible with cordless and corded rotary tools like drills and buffing wheels. The brass collets come in 10 sizes (0.5 mm to 3.2 mm), securely holding drill bits and accessories for various applications. [User-Friendly Design] The 3-jaw alloy chuck is easy to use, accommodating shank sizes from 1/32 inch to 1/8 inch. Its anti-slip texture ensures a firm grip, maintaining stability during high-speed rotation and improving work efficiency. Type: Drill Chuck Collet Set Color: As Shown Material: Metal Package Contents: 2 × silver nuts 2 × British 1/32 to 1/8 inch 4486 model 3-jaw chucks 10 × brass collets (0.5 mm, 0.8 mm, 1.0 mm, 1.2 mm, 1.5 mm, 1.8 mm, 2.0 mm, 2.4 mm, 3.0 mm, 3.2 mm) 1 × wrench 1 × L-shaped wrench Only the above package content is included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allowed error is ±1–3 mm.