Which tool is designed to loosen or tighten crosshead screws? Posted on February 16, 2019 by Admin Leave a comment Which tool is designed to loosen or tighten crosshead screws? phillips screwdriver hex driver flat head screwdriver torx driver For All Questions: IT Essentials Chapter 2 Exam Answers 2018 2019 Version 6.0 100% Leave a comment Cancel replyYou must be logged in to post a comment.