In the pursuit of work! Aiming for high usability. Bit-Wobbling Reduction "Zero Wobbling": Double-ball bearings have been newly adopted for the shaft base to prevent the bits from wobbling and are also effective for hard fastening! Assists with a variety of tasks with “4 Easy Modes” (Wood Mode / Bolt Mode / Task Mode (Thick Panel) / Task Mode (Thin Panel) plus Hammer Mode with 4-Stage Switching.With 8 total modes it supports a variety of tasks from fastening tasks that prioritize power and speed to those that call for delicate fastening of machine screws. The equipped mode memory function allows users to register the most frequently used mode.With the Hammer Mode switch near your hand you can switch to hammer mode while holding the grip. Includes 2 LED lights on the right and left sides for improved visibility. Uses a DC slide type Li-ion 18?V battery (battery and charger sold separately). Chuck method: Bit sleeve type. Maximum tightening torque: 180 N/m; Number of revolutions: 0 - 3 600 (revolutions/min.); Number of blows: 0 - 3 800 (times/min.); Tightening capacity: 5.0 inches (125 mm) (course thread); Operating volume per charge (approx.): Approx. 550; (Wooden screws φ 0.2 x 3.5 inches (5.4 × 90 mm)) (When using BL1860B). Weight: 3.3 lbs (1.5 kg) (with BSL1860B equipped).