Secure Locking Mechanism: features a specially designed slot at the drilling base that perfectly fits anti slip flat drill bits, any slippage during drilling when tightened properly. Ergonomic Grip: utilizes a twist curved handle that conforms to finger for comfortable and efficient force application in various holding positions. Double Bearing Precise Transmission: delivers significantly improved concentricity and smooth operate, making it both a professional tool and satisfying stress reliever. Aluminum Construction : combines high strength aluminum alloy body with anodized texture treated for durability while maintaining lightweight 29g portability. Package includes: 1Pc AT-MHD Hand Drill