Great for technician or maintenance personnel, the 90-Piece professional computer tool kit includes almost everything you need to fix and upgrade electronic devices. All tools are demagnetized to prevent systems and magnetic media from damage. Take along this tool kit and you can take on any challenging tasks. The Rosewill RTK-090 tool kit contains 90 pieces of tools, including the most frequently used reversible ratchet driver with 50-Piece bit & socket set, 6 precision screwdriver set, 4 electronic combination wrench set, and some professional units such as crimping tool, desoldering pump and IC insertion-extraction clipper, so you can go through your daily repair and maintenance tasks with ease and confidence. To prevent causing damage to your electric components and magnetic media, all tools are demagnetized giving you full peace of mind.