2-in-1 vacuum & thread trimmer: Integrated vacuum and cutting design trims thread ends precisely to 1 mm for clean cuts. All trimmed threads are automatically sucked into the 30L large container, no secondary cleaning needed, saving time and keeping the workplace tidy. Brushless motor, durable & quiet: Both vacuum and cutting handles use brushless motors, with a lifespan 10 times that of traditional motors. Low vibration, low noise (<65dB), reduces hand fatigue, with lower power consumption and stable long-term performance. Powerful performance, stepless speed adjustment: Max power 450W, stepless speed 3000–28000rpm, suction up to 10kPa. Easily handles threads from overlock and elastic seams, running quietly and stably, ideal for efficient garment factory production. Innovative square design, 35% larger capacity: Unique square body increases lint collection capacity by 35% vs traditional models. 360° noise and heat insulation, ergonomic handle, and HD digital display for real-time temperature and speed monitoring. Intelligent safety protection, anti-overload: Negative pressure check valve opens automatically if the filter is clogged or improperly installed, preventing motor and mainboard damage from overload and overheating, extending service life.