15-Piece Dremel Chuck Set for 4486 and 4485, Small Drill Chuck, Adapter Bit Set, Dremel Accessories, Brass Grinding Drill Bits from 0.3 mm to 3.2 mm for 4250, 4000, 3000, 300, 200, 100, and 8200

High Compatibility: Dremel chuck adapter compatible with Dremel lathes and various lightweight accessories (such as files, grinding drums, and cutting discs), meeting diverse needs such as engraving, polishing, and grinding.
Quick Mounting and Dismounting: The Dremel 4486 self-tightening chuck features a built-in anti-drop spring and a keyless chuck that supports shank diameters from 1/32" to 1/8", allowing for quick accessory changes for convenient and stable operation.
Metal Nuts: All-metal nuts replace easily breakable plastic nuts, providing impact and wear resistance to extend the life of the adapter and ensure safe use of the Dremel bit during high-frequency operations.
Brass Clamping Jaw: The brass of the Dremel accessory is precision-machined to firmly hold fine drill bits, preventing loosening during high-speed operation. which improves the accuracy and efficiency of the process.
15-piece all-in-one set: includes keyless drill chucks, metal nuts, brass clamps, and specialized wrenches; Dremel accessories covering a wide range of tool needs and eliminating the need for additional accessories.