![]() It can be chucked into both quick-chuck impact drivers or self-centering 3-jaw chuck of cordless drills.īoth edges of the flattened portion of the spade bit are sharpened and have two pointed tips at the outer edges of the sharpened area. Spade bits usually have a round shank with a ¼” hexagonal profile at the end. This helps to get accurate positioning and it also keeps your bit from walking over the material. The flat blade of a spade bit has a pilot point that can dig into the material you are drilling. You’ll also find them in some woodshops since they can be used in certain woodworking projects. They see widespread use by plumbers, and electricians rely on them to drill holes in walls for pipes or wires. Spade bits, also known as paddle bits, feature a wide, flat blade resembling a paddle. There is a much larger version of the auger bit called the earth auger, which is used to dig holes for posts and such. The latter is very useful in tight spaces, where there may not be enough room for a power drill.Īuger bits are a favorite amongst locksmiths, who use them to create mortises in thick wooden doors. They also excel at removing most of the material from the holes, greatly reducing the risks of jamming or clogging as a result.Īdditionally, the way they are designed, combined with their sturdiness, makes them viable both in power drills as well as hand-powered ones. The first noticeable thing (or two things) about auger bits is the fact that they are both long and strong, making them ideal for drilling deep holes. The difference here is that the auger bit usually has a screw thread which helps to easily pull the drill bit through the material.Īuger bits have seen a wide range of use for decades, both by DIYers and professionals, mainly in the domain of construction. Similar to other “wood” bits, the auger bit has a sharp, pointy tip right in the center to help you get a precise location before and during drilling. ![]() In other words, they rarely get stuck inside the target material. The way they are designed makes them ideal for removing any dust and debris from the borehole. What is an Auger Bit?Īuger bits are spiral-shaped drill bits used to drill deep holes in wood. ![]() So, this article is basically my attempt to help you understand the key ways in which these three types of drill bits differ. I used to be one of those people, but as I gained some hands-on experience, I eventually learned the numerous differences between the three. However, I do know for a fact that a lot of people tend to confuse the specific applications of each. The similarity between auger bits, spade bits, and hole saws is pretty obvious they are used for drilling holes.
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