Bug-O (also known as Weld Tooling Corporation) is a producer of welding and cutting solutions. The company manufactures drives, carriages, rails, and attachments designed to mechanize welding guns, cutting torches, and other hand-held tools. Its products are used for a range of applications, such as oxy-fuel or plasma cutting and beveling, carbon arc or plasma gouging, submerged arc welding, flame spraying, and nondestructive inspection testing.