It is compatible with most rotary tools used in hardware, hobbies, home, etc. The drill attachment chuck is made of high quality plastic, lightweight and easy to carry around. This tool fits in very small and compact areas, it will help you get your work done quickly and improve your efficiency. It is a practical tool a must have in your toolbox because you never know when you need to fit your drill bit in a tight space. The 90 degree drill attachment with 9.5mm shank is suitable for many many portable electric drills. The chuck of the tool accepts standard drill bits from 0.8 to 10 mm and withstands a maximum torque of 20 Nm Product Specification: Color: Black Type: 90 Round Shank Diameter: 9.5mm / 3/8" Jaw Chuck Range: 0.8- 10mm / 0.03-0.4in Max torque: 20N m Weight: 425g /15.0oz Package list: 1 * right angel adapter Note: The actual product color may differ from the photo due to the light. There may be a slight deviation in product measurement.