"This is a high quality metal right angle drill bit accessory with max. 3/8"" chuck and 8mm hex shank, making it compatible with almost all drills standard. It allows you to rotate the power of the drill 90 and reach the most difficult to reach places. A great tool for the DIYer and professional user! Features: Apply aluminum and tool steel, strong and durable. 10mm chuck ( 3/8""), accepts 1-10mm drill bits, with a wrench to tighten/loosen it. 8mm hex shank fits most standard drills, such as: hand drills/ electrics, electric drill, polishing accessories, etc. 1500 rpm with 25 Nm torque. Simple to install and use. Rotate the electric drill 90 to hard to reach places. Features: Color: black Material: aluminum + tool steel Type: 90 drill attachment Hex shank size: 8mm Jaw chuck range (diameter): 1-10mm / 0.039-0.393in Max. Speed: 1500 rpm Maximum torque: 25N m Product size: 15.5 * 9.8 * 4cm / 6.10 * 3.86 * 1.57in Product weight: 482g / 17oz (with key) Package size: 17 * 13 * 4.5cm / 6.69 * 5.12 * 1.77in Package weight: 486.5g / 17.17oz Package Included: 1 * Right Angle Drill Attachment 1 * Chuck Key A flawless stay "