CK Worldwide TIG Fingertip Hand ControlsCK Amptrak Control - Fingertip Hand controls for Tig welding Systems are Made in the USA to UL and CSA standards and have a 1 Year warranty. Amptrak Tig Hand controls have direct plug cable assemblies. On/Off and Welding Amperage control. Rugged, dependable, precise adjustment of the welding arc and are a tremendous value. CK Worldwide Amptrak Hand Controls.