Feature:1. Fast Changing: Enables quick changing of drill bit on rotating tools, no need to change the chuck, very simple.2. Firm Clamping: Applicable to 0.3-3.2mm shank, the 3 jaw chuck ensures stable clamping for more reliable working.3. Practical Use: Ideal for various light accessories, including drill bits, sand drums, polishing wheels and so on.4. Good Material: Made of high quality aluminium alloy material, not easy to deform, suitable for repeated using.5. For DREMEL: Compatible with for DREMEL, can use with for DREMEL 225 flexible shaft and 575 right angle connection.Specification:Item Type: Drill ChuckMaterial: Aluminium AlloyFunction: Fittings for rotating tools. Colour: BlackClamping Range: Approx. 0.3 ~ 3.2mm / 0.01 ~ 0.13inThread Specifications: G9/32-40Application: For original for DREMEL 9/32-40 thread. Available for DREMEL Electric Grinder Models: 4000, 400, 3000, 398, 395, 300, 285, 275, 200, 100, 8200, 800, 780, 770, 7700, 750. .Package List:1 x Drill Chuck