12-9219: This special thin wall socket type tool, with a 1/2 square drive to accept common breaker bars and torque wrenches, is required to service 1994-current Arctic Cat 9 tower and new style 6 tower primary clutches. 12-9222: This 3/4 square drive socket type tool is required to service P85 and P90 primary clutches used on 1972-current snowmobiles and 1985- current ATV s.