GTAW torches come air-cooled and water-cooled. Their heads align in-line with the body or at 90, 120, or 135 degrees to it. Nozzles, specified by inside diameters, run 1/4 to 5/8 in. Vendors offer special designs: longer to give improved accessibility to the weld joint, or wider to extend shielding gas coverage.Saw guns come in three-types-side, concentric, and deep-groove flux delivery.In oxyfuel welding (ofw), heat comes from burning gases, rather than arcs, Torches hold separate tubes for fuel gas and oxygen, blended in a mixer assembly. A torch assembly comprises drillpressindustrialpowerfeed a handle (aluminum, stainless steel, or brass); a mixing chamber; and a brass welding tip or cutting head. Light-duty torches weld sheer metal to 3/16, in. thick; medium, to 1/2 in.; heavy, 1/2 in. and up.

Mechanic or woodworker?There are two basic types of air tools: those for mechanical work and those for construction or woodwork.One of the most popular mechanic''s air tools is the impact wrench. As you''ll see in the chart on the following page, prices vary greatly from brand to brand. The particular models featured in the chart are listed in order from highest to lowest maximum torque per foot-pound.When it comes to woodworking, framing, or even applying shingles, air nailers and staplers can make quick work of once-tiring tasks.When deciding on an air tool to purchase, take into consideration the type of compressor you have, the number of hours you plan to use the tool, and its versatility.Air-powered everythingThe drillpressindustrialpowerfeed number of air-powered tools available is growing all the time.

The DE 10 basic pump model uses a fixed cam, spill-pump-spill fuel and timing control that was originally targeted for constant speed applications. As the variety of customer engine drillpressindustrialpowerfeed configurations has expanded, Stanadyne has recognized that the DE 10 was the simplest alternative for variable speed applications, as well. The DE 10 is designed for economical electronic full authority fuel and timing control, with injection pressures to 14,500 psi.Typical performance features managed by an electronic control module include cold-start timing advance, excess cranking drillpressindustrialpowerfeed fuel, fuel curve shaping for turbo boost compensation, temperature compensation, and transient fuel and timing control. All governing options are electronically controlled, as well. The spill valve closure signal provides closed-loop timing feedback without an additional timing sensor.

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