This power tool applies impact to a bit for drilling holes and breaking concrete and other hard materials. With a high-efficiency brushless motor and optimized hammering mechanism, it features the fastest drilling speed and maximum chiseling capability for this class (15% increase in drilling speed and 140% increase in chiseling volume compared to conventional products). Components were reviewed and operability was improved to optimize the positional relationship between the hammer, center of gravity and handle. The product also features a dust collection system that protects the user from concrete dust as it maintains a clean workplace.