Specifications:Color: BlackMaterial: Aluminum + Tool SteelType: 90Drill AttachmentHex Shank Size: 8mm / 0.31inJaw Chuck Range (Diameter): 1-10mm / 0.039-0.393inMax. Speed: 1500 RPMMax.Torque: 25NmProduct Size: 15.5 * 9.8 * 4cm / 6.10 * 3.86 * 1.57inProduct Weight: 482g / 17oz(With Key)Package Size: 17 * 13 * 4.5cm / 6.69 * 5.12 * 1.77inPackage Weight: 486.5g / 17.17oz Features:Apply aluminum and tool steel, strong & durable.10mm(3/8") chuck, accept 1-10mm drill bits, with a key to tighten/loosen it.8mm hex shank, suits most standard drills, like: hand/power drills, electric drill, buffing attachments etc.1500RPM with 25Nm torque.Simple to install and operate.Make electric drill power swerve 90for hard-reached places.