Profile: Hendershot Tool Co. renders services and products to the oil industry. We develop midco sand pumps & bailers, standpipe and mudline/manifold fittings. Our service line includes hardbanding, rebuilt tool joints and stubbing drill collars. Our plug buster sand pump is used to remove sand gravel, junk, wood, plastic and retainers. We specialize in drill string repair services. We also offer cold rolling threads and kemplating cut connections.