Perfect Replacement Fit: Compatible with Makita B05030K sanding machines for reliable performance. Durable Construction: Made from quality material to withstand friction and prolonged use. Reliable Brake Function: Helps quickly stop sanding disc rotation for increased control. Easy Installation: Direct replacement for 424131-5 allows quick swap without modifications or special tools. Enhanced Tool Longevity: Maintains proper brake performance, reducing wear on other components., Manufacturer: Briny River