Self-igniting portable butane heat tool-professional quality. Features "Auto Switch" safety shut-off, iron plated tips and built in butane filter. Butane fuel level is visible through a window on the body of the tool. Operates up to 2 hours per refill. Refills with butane fuel - Weller® no. WB1 or WB2. Butane-Powered. Self-igniting portable butane heat tool is professional quality. Ideal for service technicians. For such uses as anti-static soldering, heat shrink and cutting rope. Features "Auto Switch" safety shut-off, and iron plated tips.