Operation

Refer to FIGURE 1 on page 4.

Warning! Always unplug the unit when changing bits.

Warning! After drilling or driving screws, the bit will be extremely hot. Do not touch it until it has had ample time to cool down.

1.Insert the Chuck Key (#41) into one of the holes in the Chuck (#3) and turn it coun- terclockwise to open the jaws.

2.Insert the bit and hand tighten it, then tighten it with the Chuck Key (#41) by turning it clockwise.

3.With heavy leather gloves on, tug on the bit and make sure it is securely attached. Check that it is straight.

Note: Always use sharp bits. Dull or damaged bits may cause undue stress on the drill and possibly break causing injury. Bits are available at Harbor Freight Tools.

4.Securely clamp your workpiece.

5.Locate the Side Handle on the desired side of the tool.

Drilling

6.When drilling wood, place the bit at the point to be drilled. If you are drilling a hard, smooth surface, use a punch to mark the drill location. Set the Directional Switch forward. Grasp the handles firmly with both hands and slowly squeeze the Trigger (#34). Never operate the tool without the side handle. Never force the tool. Only apply light pressure when horizontal drilling. If you need more or less torque, use the torque adjustment on the top of the drill.

Note: When drilling plastics or plastic coated chip board, follow the same directions as stated in number 5 for wood.

Note: If a bit becomes wedged into the workpiece, stop and change the Directional Switch to the reverse position. Then slowly squeeze the Trigger to back the bit out of the work piece.

7.When drilling metal, always use a punch to mark the drilling position. Use a lubricant to prolong the life of the bit and increase the drilling action with most metals. With steel, tin, and sheet metal use a light machine oil, with aluminum, use paraffin. Do not use lubricants with brass, copper, and cast iron. Grasp the handles firmly with both hands and slowly squeeze the Trigger (#34). Never operate the tool without the side handle. Never force the tool. Only apply light pressure when horizontal drilling.

8.When driving screws, use bits suitable for the type and size of screw you are using. Drill a pilot hole for the screw head to bite into. Use the lowest torque setting. Grasp the handles firmly with both hands and slowly squeeze the Trigger (#34). Never force the tool. To back out a screw, stop and change the Directional Switch to the back posi- tion.

SKU 47991

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

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Harbor Freight Tools 47991 manual Operation, Drilling, Refer to on
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47991 specifications

Harbor Freight Tools is known for its extensive range of high-quality, affordable tools and equipment, catering to both DIY enthusiasts and professional tradespeople. Among its many popular products is the Harbor Freight Tools 47991, a versatile utility tool that serves various applications across different industries. This tool combines functionality and durability, making it an essential addition to any toolkit.

One of the standout features of the Harbor Freight Tools 47991 is its robust construction. Built with high-grade materials, this tool exhibits exceptional resilience, allowing it to withstand tough working conditions. The ergonomic design ensures comfort during prolonged use, reducing hand fatigue and improving overall user efficiency. The textured grip provides added control, which is especially important during precision tasks.

This utility tool is equipped with multiple functionalities, making it ideal for a variety of tasks. The 47991 often comes with interchangeable attachments that allow users to easily switch between different functions. From cutting and scraping to fastening and precision adjustments, this tool is designed to tackle a wide array of challenges. Its versatility makes it suitable for both home improvement projects and professional jobs.

In terms of technology, Harbor Freight Tools continually innovates to enhance the performance of their products. The 47991 utilizes advanced engineering techniques to ensure reliability and efficiency. Users can appreciate features such as quick-release mechanisms for easy attachment changes, as well as built-in safety features that promote safe operation.

Another characteristic that sets the Harbor Freight Tools 47991 apart is its portability. The lightweight design allows for easy transportation, whether on a job site or within the home workshop. This makes it an ideal option not only for stationary tasks but also for those that require mobility.

In summary, the Harbor Freight Tools 47991 is a remarkable utility tool characterized by its durable construction, ergonomic design, and versatile functionality. With advanced technologies at its core, it enhances the user experience while delivering reliable performance for a range of applications. Ideal for both DIY projects and professional use, this tool exemplifies Harbor Freight’s commitment to providing high-quality, affordable options for all types of users. Its combination of practicality and advanced features ensures it remains a favored choice in toolboxes across the nation.
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