The collet is made of high-quality brass material, which is sturdy and durable, after heat treatment, it has high hardness and is not easy to wear, it is compatible with Dremel cordless and corded rotary tools.
The keyless chuck is made of alloy material, with high hardness and durability,its three jaw chuck has high accuracy and can tightly grasp the tiny drill bit, so that the working efficiency of the rotary tool can be improved under high-speed rotation.
Please measure the size you need before purchasing,quick change keyless chucks holds various accessories with 1/8" 1/16" 1/32" 3/32" shank sizes.
4485 Quick change collet compatible with Dremel ,but except discontinued models 1, 2, and series 1 of discontinued models 280, 270 and 260,it is also compatible with Dremel 225 ande compatible with Flex-Shaft attachment.