Features & Benefits of the Pro-1 Hot Knife In 2005, due to the demand from Industrial and Construction markets, TL Marshall Company introduced the heavy duty, PRO-1 Hot Knife. This tool features a 5-1/2" Stainless Steel Blade with single blade construction knife without detachable blades. Won't shut down to cool when you toggle power button on and off per directions. Offers three temperature settings. * Rigid Stainless Steel Blade will not bend or wrap. * For Construction, PRO-1 Cuts free hand electrical boxes, beam pockets, electrical/ plumbing channels, utility hole passes, and more. * Contours and shapes architectural embellishments and irregular shapes in foam. * Economical & Durable * Won't shut down to cool when you toggle the power button on and off. * High, Medium and Low heat settings * Up to 750 degrees F * One Cut opens more than 1/4" wire channel * Heats up in under 1 minute * 110 AV, 130 watts * 6' Electric Cord