Base Adjustment

Fig. 8

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One of the distinctive and important features of the Porter-Cable jigsaw is the ability to start the cut, (in wood only) within an area, without making drilled holes first. This is especially important when making cutouts for electrical outlets in finished walls, openings in cabinet tops for sinks and openings for plumbing fixtures.

NOTE: When plunge cutting, it is recommended the orbit knob be set to position “3”.

First, measure the area to be cut out and mark it clearly with a pencil, chalk or

scriber. Choose a convenient starting point and hold the jigsaw over the point and inside the line of waste. Tip the machine forward until the front edge of the base rests firmly on the surface of the material with the tip of the blade clear of the work surface, as shown in Fig. 8. Turn motor “ON” and slowly lower the back of the machine until the base is fully seated on the surface of the work. Now, guide the cutting along the inside of the marked area. If sharp corners are desired cut right up to the corner of the marked edge. Stop and back up just a bit, start the turn and cut along the side. Do the same at each corner until you end up where you started. Then, go back and cut into each corner from the opposite direction. The base of the machine is wide enough so you will have a solid guiding surface on either side of the cut.

The base may be adjusted two ways, front to rear and tilted either left or right for making bevel cuts. The base has a detent at the 0 (90 degree) setting and at 15, 30 and 45 degree setting both left and right of center.

The base is set at its forward most position at the factory. The base can be adjusted to the rear for making flush cuts around walls and other similar areas. To move the base forward or backward, turn the saw on its side, loosen screw (A), Fig. 9, move the base to the desired position and retighten the screw.

NOTE: When making bevel cuts, the base should be set to the forward most position (Fig. 9).

Fig. 9

8924, 643 specifications

The Porter-Cable 643,8924 is a notable tool widely recognized among professionals and DIY enthusiasts for its robust performance and innovative features. Designed with versatility in mind, this tool is an essential addition to any workshop, making it an optimal choice for both detailed craftsmanship and heavy-duty tasks.

One of the standout characteristics of the Porter-Cable 643,8924 is its powerful motor. Equipped with an efficient motor that delivers consistent power, it ensures that users can tackle a diverse range of applications without experiencing stalls or decreased performance. The motor's reliability fosters an environment of confidence when working on intricate tasks or handling larger projects.

This tool also features an adjustable speed control system, allowing users to set the tool's speed according to the specific requirements of their work. This functionality makes it suitable for various materials, whether working with softwoods or tougher composites, enhancing its adaptability across different projects. The precision of speed adjustment further contributes to the accuracy and quality of the final outcome.

Another advanced technology incorporated into the Porter-Cable 643,8924 is its ergonomic design. The tool is built with a comfortable grip and balanced weight distribution, reducing hand fatigue during prolonged use. This thoughtful design aspect is critical for professionals who spend extended periods on job sites, ensuring comfort does not compromise performance.

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In summary, the Porter-Cable 643,8924 stands out for its powerful motor, adjustable speed control, ergonomic design, and durability. With these features combined, it provides users with an effective tool that meets the demands of various tasks while prioritizing comfort and safety. Whether you're involved in detailed woodworking or heavy-duty construction, the Porter-Cable 643,8924 is a powerful ally that delivers consistent results.