material: made of high quality steel and plastic, sturdy and durable, can be used for a long time. versatile angle drill accessory - fits standard drill bits from 0.8mm to 10mm and allows precise drilling in hard-to-reach areas. universal three-jaw chuck: wide clamping range, easy to use, stable and firm, not easy to slip. high performance: with a maximum torque of 25n and a maximum speed of 1500rpm. compatibility 90 degree angle drill attachment with 8mm shank, fits many standard drill bits.