Features 1、FIRM CLAMPING: Three jaw keyless drill chuck bring firm clamping, not easy to slip off, easy to use and very stable 2、MANUALLY TIGHTEN: Impact driver chuck can be tightened manually, which is convenient to use and portable to carry 3、MADE OF CARBON STEEL: The shell of the three jaw chuck is made of carbon steel, which has good resistance to atmospheric corrosion and is durable 4、MULTIPLE FUNCTIONS: Can be used for the hex chuck of pneumatic tools, electric tools and hand tools, and can be used with drill bits, grinding heads and screwdriver heads to realize multiple functions in one tool 5、ELECTRIC GRINDER ACCESSORIES：Suitable for electric grinder multi function chuck, electric grinder chuck, electric grinder accessories, small electric grinder clamping core, universal clamping core Specification Item Type: Keyless Drill Chuck Material: Carbon steel Scope of Application: Electric grinder multi function chuck, electric grinder chuck, electric grinder accessories, small electric grinder clamping core, universal clamping core Clamping Range: Approx. 0.3 ~ 6.5mm / 0.01 ~ 0.26in Shank Type: 1/4in hex shank Package List 1 x Keyless Drill Chuck