1. When tightening the screw to the preset torque value, the handle emits a "DADA" prompt sound and automatically idles, preventing the screw from being stripped or damaged due to over-tightening (adjustable torque: 0.35N.cm-0.55N.cm) 2. Removable bit design with secure fit, no shaking, just a simple twist, rotate, and lock, the bits can be quickly replaced. 3. Magnetic: Strong magnetic bit for easy use. Tight engagement for effortless removal, sturdy, and durable magnetic bits 4. Ergonomic handle design for comfortable grip and easy operation. Spiral texture anti-slip design increases friction, preventing slippage during use. 5. Package includes: 1 x Screwdriver Handle 5 x Bit
