BALL GRIP Cordless Screwdriver Seamless Work by 2 ways usage of Power and Manual Driven Screwdriver. Interchangeable with 1/4inch Hex Power Bits or Double Ended Bits (Japanese 1/4inch Hex standard is not applicable). Power Driven up to 17.7 lbf-in (2N.m) torque, and Withstanding up to 88.5 lbf-in (10N.m) torque by Manual Driven. 3.6V(800mAh) Rechargeable Battery Integrated (Charging from the micro USB port). No Load RPM: 280min-1. Built-in Bright LED Light for work efficiency in a dark place. Made in Japan by VESSEL 220USB1U No -