most of the tools look ok to used but the shaft with the black driver on is stuck. i received it this way and have not tried to remove it. The BESTOOL Mercruiser Alignment Tool Gimbal Bearing Puller Set is a professional-grade set designed specifically for engine alignment and gimbal bearing removal. The durability and quality of BESTOOL's tools are evident in this product, making it a must-have for anyone in need of precise engine maintenance. The set includes all necessary components to ensure accurate alignment and efficient bearing removal, making it a valuable addition to any workshop or garage.