These units produce a smaller flame than the TA-RUT torches but cover a larger area with more heat than the 77 hand torches. Three different heads are available to produce a varying degree of heat and flame width. All models are available with either needle valve or convenient trigger valve. Both torches come with easy grip bakelite type handle. Application: These lightweight hand torches can handle a variety of jobs in plumbers shops, sheet metal shops, etc. They are used for thawing, melting, heating, drying and many other applications. Plumbers have used these torches for sweating large size streamline fittings. Note: A Fisher 67/743 high pressure regulator is required for use with this torch.