Makita GA5042CX1 SJII High-Power Angle Grinder With Tuck Point Guard, 5" Powerful 12.0 AMP motor delivers more output and variable (2,800 - 11,000) RPM SJSII provides a leaf spring and cam gear drive mechanism that is engineered to reduce vibration Includes a 5" dust extraction tuck point guard for clean and accurate tuck pointing and cutting Electronic Controller is a three-part electronic feature designed to provide the required power in high torque applications and increase tool life Variable speed control dial enables user to match the speed to the application