900470 - 11-30-00.QXD 9/25/02 11:10 AM Page 11

DRILLING WOOD

In addition to the instructions listed under GENERAL DRlLLlNG, the following also apply:

1.When using twist drills in wood, they should be withdrawn from the hole frequently to clear chips built up in flutes to avoid overheating and burning work.

2.If a backing block is used to keep back of work from splintering, it should be clamped securely in place. If a backing block is not used with spade bits or hole saws, ease up pressure as soon as bit point breaks through work, and complete the hole from the opposite side.

DRILLING METAL

In addition to the instructions listed under GENERAL DRlLLlNG, the following also apply:

1.Use only good quality sharp high speed steel twist bits when drilling metal.

2.Start drilling with slow speed and gradually increase speed as drill cuts. The harder the material, the slower the speed required. The softer the material, the faster the speed.

3.When drilling a large hole, it is easier to first drill a smaller hole and then enlarge it to the required size.

4.The use of a lubricant, such as oil, on the drill point helps keep the bit cool, increases drilling action and prolongs drill bit life.

IT’S A

SCREWDRIVER

Fig. 8

DRIVING WOOD SCREWS

1.Drill pilot and shank clearance holes. See following chart.

SUGGESTED HOLE SIZES

FOR WOOD SCREWS

 

Shank Drill

 

Pilot Drill Diameter

 

 

 

 

 

Screw

Clearance

 

Soft

Hard

Size

Diameter

Wood

Wood

 

 

 

 

 

 

 

#6

9/64

(.140)

1/16

(.062)

7/64

(.109)

#8

11/64

(.172)

5/64

(.078)

1/8

(.125)

#10

3/16

(.187)

3/32

(.094)

9/64

(.140)

#12

7/32

(.218)

7/64

(.109)

5/32

(.156)

 

 

 

 

 

 

 

Shank

Drill

Pilot

Drill

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Porter-Cable 877 instruction manual Drilling Wood, Drilling Metal, Driving Wood Screws

877 specifications

The Porter-Cable 877 is a versatile and durable tool designed to cater to the needs of woodworkers and DIY enthusiasts. As a heavy-duty router, it is particularly known for its robust performance and precision, making it an essential addition to any workshop.

One of the standout features of the Porter-Cable 877 is its powerful motor. Equipped with a 3.25-horsepower motor, this router can handle a wide range of tasks, from simple edge profiling to more complex joinery. The motor's consistent performance ensures that users can work with various materials, including hardwoods, without the fear of stalling or overheating.

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Porter-Cable has also placed a strong emphasis on user comfort and safety. The router is designed with an ergonomic handle that reduces fatigue during extended use, ensuring that users can maintain control throughout their projects. Furthermore, its clear sub-base provides excellent visibility, allowing for better sightlines when working on intricate designs.

In summary, the Porter-Cable 877 is a powerful and reliable router that offers significant performance, precision, and user-friendly features. Its robust motor, adjustable depth control, electronic speed management, and ergonomic design make it an ideal tool for both professionals and hobbyists seeking quality in their woodworking tasks. Whether undertaking large projects or intricate detailing, the Porter-Cable 877 proves to be an asset in any woodworking environment.