Extension Cords

Grounded Tools: Appliances with Three Prong Plugs

1.Appliances marked with “Grounding Required” have a three wire cord and three prong grounding plug. The plug must be connected to a properly grounded outlet. If the appliance should electrically malfunction or break down, grounding provides a low resistance path to carry electricity away from the user, reducing the risk of electric shock. (See Figure A.)

2.The grounding prong in the plug is connected through the green wire inside the cord to the grounding system in the appliance. The green wire in the cord must be the only wire connected to the appliance’s grounding system and must never be attached to an electrically “live” terminal. (See Figure A.)

3.Your appliance must be plugged into an appropriate outlet, properly installed and grounded in accordance with all codes and ordinances. The plug and outlet should look like those in the following illustration. (See Figure A.)

Figure A

Figure B

Double Insulated Appliances: Appliances with Two Prong Plugs

4.Appliances marked “Double Insulated” do not require grounding. They have a special double insulation system which satisfies OSHA requirements and complies with the applicable standards of Underwriters Laboratories, Inc., the Canadian Standard Association, and the National Electrical Code. (See Figure B above.)

5.Double insulated appliances may be used in either of the 120 volt outlets shown in the following illustration. (See Figure B above.)

1.Grounded tools require a three wire extension cord. Double Insulated tools can use either a two or three wire extension cord.

2.As the distance from the supply outlet increases, you must use a heavier gauge extension cord. Using extension cords with inadequately sized wire causes a serious drop in voltage, resulting in loss of power and possible tool damage. (See Table A.)

3.The smaller the gauge number of the wire, the greater the capacity of the cord. For example, a 14 gauge cord can carry a higher current than a 16 gauge cord. (See Table A.)

4.When using more than one extension cord to make up the total length, make sure each cord contains at least the minimum wire size required. (See Table A.)

SKU 91797

For technical questions, please call 1-800-444-3353

Page 5

91797 specifications

Harbor Freight Tools 91797 is a versatile and powerful tool that has garnered attention among both professional tradespeople and DIY enthusiasts. This instrument is primarily designed for users seeking robust performance in a compact package, making it perfect for a range of applications from automotive repair to home improvement projects.

One of the standout features of the Harbor Freight Tools 91797 is its powerful motor. Equipped with a high-torque design, the motor delivers impressive output without sacrificing compactness. This empowers users to complete tasks efficiently, even in tight spaces. The tool’s ergonomic design ensures comfort during extended use, reducing fatigue and enabling more precise control.

The Harbor Freight 91797 also includes advanced technologies that set it apart from competitors. It incorporates a user-friendly interface with intuitive controls, allowing for quick adjustments between different settings. This feature is particularly useful for beginners who may not be familiar with the tool's capabilities. The motor also operates at multiple speed settings, giving users the flexibility to tackle various materials effectively.

Another characteristic worth mentioning is the build quality of the 91797. Constructed from durable materials, this tool is designed to withstand heavy use in demanding environments. The rugged exterior not only increases longevity but also provides resistance against wear and tear, extending the tool’s lifespan.

Portability is another key aspect of the Harbor Freight Tools 91797. Weighing in at a manageable size, it is easy to transport to job sites or store away when not in use. This feature is particularly advantageous for contractors who need reliable tools that can be quickly moved from one location to another.

Furthermore, the Harbor Freight Tools 91797 is engineered with safety in mind. It includes safety mechanisms that prevent accidental starts and ensure the protection of the user while operating the tool.

In summary, the Harbor Freight Tools 91797 stands out for its powerful motor, advanced technologies, sturdy construction, and user-friendly design. These features, coupled with portability and safety measures, position it as a valuable addition to any toolkit, whether for professional or home use. Its versatility and reliability make it a go-to choice for individuals who demand quality in their tools.