Spade bits are ideal for drilling holes up to 1-1/2 inches, but if you need a larger opening, consider switching to a tool such as a hole saw. Typical sets often come with bits ranging from 1/4-inch to 1-inch. You can purchase paddle bits individually or as a set. Spade bits have a flat, paddle-like shape with two sharp cutting edges, allowing them to cut away material quickly. Can wander off course without a starting pointĪ spade bit, sometimes called a paddle or flat bit, is designed for making large holes in wood.Can be used to make pilot holes and enlarge existing ones.Versatile and can be used on various materials.Related: What is an Awl? (+ How to Use It) To prevent this problem, it’s a good idea to create a starting point with an awl before you begin drilling. Wandering can damage the surface of your project and make a hole where it wasn’t intended. One potential risk of using twist bits is they can wander off course, also known as walking or skating. Related: How to Drill Pilot Holes (Why, When & Correct Size) A pilot hole, or pre-drilling, is a small hole drilled into a workpiece that creates an opening for a screw or a larger drill bit. I frequently use twist drill bits for making pilot holes and enlarging existing ones. It can be used on various materials, including metal and plastic, and it’s the go-to choice for many woodworking projects. The biggest advantage of a twist bit is its versatility. Twist bits are generally affordable and often bought in sets ranging in size from 1/16-inch to 1/2-inch, but smaller and larger bits are available, depending on the application. They are usually made of high-speed steel and available with various coatings, such as titanium which adds strength, improves corrosion resistance, and reduces friction. Twist bits have a cylindrical shape, a sharp point, two cutting edges, and two spiraling flutes that remove material from the hole as it turns. The twist drill bit or twist bit is the most common bit used for making holes in wood, and it’s what probably comes to mind when you think of a drill bit. Now that we’ve covered the basics, let’s look at the types of drill bits for making holes in wood.
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