4486 Drill Chuck: 9/32 - 40 Thread Quick Change Keyless Chuck holds a variety of micro drill bits, from 1/32" to 1/8" without having to change the rotation tool frequently. Made from high-grade alloy material, the one-piece structure design of the three-prong chuck and built-in spring structure make it more stable than plastic models
BRASS COLLET: Equipped with 11 size brass collets: 0.5/0.8/1.0/1.2/1.6/1.8/2.0/2.2/2.4/3.0/3.2mm, meet your different needs. Made of high quality brass, these collet nuts are sturdy and bendable. The 4-prong design ensures a strong grip and holds the drill bit firmly in place
M8 Metal Collet Nut: This all-metal nut not only changes collets, but also improves precision and usage efficiency. Made of alloy steel, this nut is abrasion resistant, durable and stronger than plastic nuts
Drill Chuck Collet Set: The brass collet set with 4 prong design and high precision craftsmanship ensures strong holding power and easily replace broken rotary tool accessories. You can change the clamping capacity of your electric grinder in just seconds and even more versatile
Wide Compatibility: This drill chuck collet set is compatible with most 4486 rotary tools on the market. Easy to use with any tool, such as drill, grindstone and cutting whetstone. Suitable for electric grinders, drills, extension flexible shafts, carving machines, and other polishing and sanding tools