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Spade bits are used for drilling large holes in wood. They consist of a shank with cutters and a spike. Pilot holes may be necessary, but self-feed bits eliminate this need. Other alternatives include hole saws, auger bits, and multi-spur bits. Spade bits can be easily filed to create custom sized holes and are affordable and easy to use.
A spade bit is a type of drill bit used for drilling large holes in wooden objects. These bits consist of a long, thin rod known as a shank. One end of the shank is inserted into a drill during use. The other end is flat, with a small spike sticking out at the end. Between this point are two cutters, which are used to cut a cylindrical opening in the wood as the bit rotates in the drill.
These drill bits come in a variety of sizes and can be used to drill different sized holes. Depending on the quality of the bit used, it may be necessary to drill a pilot hole in the wood before using the spade bit. This hole is created using a traditional twist drill and is placed directly in the center of the planned hole. The pilot hole helps direct the pointed tip of the spade bit, keeping it still to increase the accuracy of a cut.
Some modern spade bits have a threaded point at the end, similar to a screw. These units are known as self-feed drills and often eliminate the need for pilot holes. An auto-feed bit will generally be more expensive than a regular spade bit, but will greatly improve the speed and accuracy of your cuts.
Several other types of tools can be used as an alternative to these spade bits. A hole saw is the most common and is used to make quick, clean cuts. Auger bits can also be used to drill holes. While slower than spade bits, auger bits are also more accurate and precise, although they may not work on harder wood species. A multi-spur drill bit can be used to drill very large holes in wood, such as those needed for piping.
One of the main advantages of spade bits is that they can be easily filed to create custom sized holes. Because they’re so affordable, most users will simply use a metal file to smooth the edges of the bit to the desired size. These drill bits are easy for even the novice user and are one of the most basic tools for drilling holes in wood doors, furniture and many other applications.
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