How to Use a Round Rasp

What You'll Need
Rasp handle
Safety goggles

A round rasp is used in a variety of wood working or masonry projects. The rasp features a rounded shaft, making it great for creating smooth rounded indentations or holes in projects. It can be used to create decorative touches as well. Using a rasp incorrectly can cause the rasp to become dull, and can lead to injuries to those using it. Here's what you should know.

Step 1: Choosing the Right Size Rasp

If you are working on something small, like a wooden toy, you will want a round rasp that is smaller in circumference. Working with larger pieces of wood, such as creating a headboard for a bed, may require a larger circumference. If you are planning on doing varied work with a rasp it will be worth the money to purchase a set. This will give you different sizes to choose from.

Step 2: Consider the Coarseness 

Working with stone is going to require a courser rasp than working with a soft wood. Using a raps that isn't course enough for the material will result in damaging the rasp. Using one that is too course will harm the material you are working with. A rasp set will have different coarseness's to choose from.

Step 3: Add a Handle

If you have a rasp without a handle, you can pick up a handle for pretty cheap. The blades on the rasp are very sharp, and can cut you if you slip. Most rasps are designed so you can swap the handles out. This means you only need one or two handles for an entire set.

Step 4: Start Using the Rasp

Once you have the correct rasp, you can begin to use it. Be sure you are using a dust mask and safety goggles. Clamp down the wood you are working with so it is stable. The rasp will be used in front of you, and pushed away from you. You should not use the rasp in a back and forth motion. This will dull the blade, can cause splinters in wood, and can create excess dust if working with stone. You will continue to file the material with the rasp until you have the desired shape and depth.

Step 5: Finishing

A round rasp will create jagged edges when you work with wood you will need to finish. You can use sandpaper to finish off the edges. If you needed to use a very course rasp, the edges may need to be ground down before they can be sanded. Most people will simply use a sheet of sandpaper, but depending on the size of the project a hand held sander may help speed up the process.

Using a rasp with stone will create dust. If you are going to seal the stone, you simply need to get rid of any leftover dust. You can sweep it away or use a vacuum to pull the dust off the stone.