These sparks are usually not an issue however, if things get dirty and overly worn, you can start to have bigger problems. The friction against the carbon brushes is what creates these sparks. Minor sparking can be a natural part of this process. The commutator helps switch the magnetic field so that the drill’s motor keeps on spinning in the proper direction. Today’s brushes are made of carbon, and they run up against the commutator within the drill. They were once called brushes because they used to consist of copper wires that looked like brushes. The carbon brushes are not really ‘brushes’ at all. So, if your drill is sparking, but your friend’s drill isn’t, know that this could be just a random anomaly due to slightly differing parts within the drill. Note: drills are similar to snowflakes in that no two are exactly alike. If your drill has a brake, then it isn’t uncommon for a drill to show some sparks within the housing when you abruptly stop the drill.Īs long as the drill isn’t spraying sparks when it is started or stopped, don’t be alarmed by a few sparks when braking. Cordless Drill Sparking When it Starts and Stops We will explain what all this means in the sections below. Here are a few benign reasons for sparks in your cordless drill: We will cover the dangerous causes further on. In this section, we discuss the benign causes of sparks in your cordless drill. More dangerous sparks would include sparks visible in a lighted room, sparks that are shooting from the drill’s motor’s housing accompanied by the smell of smoke or melting plastic. For our purposes, normal sparking would mean small flashes of sparks that are difficult to see in full light and do not leave the drill’s housing. Common Reasons a Cordless Drill will Sparkīefore discussing anything more sinister, let’s try to relieve your mind with some common reasons your cordless drill could be sparking.įirst, let’s explain what we mean by sparking. We will try to give you some tips on repairing your drill however, sometimes it’s time to spend the money on something new.Īlright, let’s jump into it. If you’ve had a good drill for a while, then throwing it away can feel like parting with a friend. Also, seeing or smelling smoke is not part of normal drill engineering. However, if the drill is throwing sparks outside the drill, you may have a more serious problem. These small sparks are a normal part of the cordless drill operation. Today we’re going to explain why this might be happening, if the sparking is dangerous, and what you should do about it.Ĭordless drills will spark normally within the drill itself as the carbon brushes pass by the commutator. If you’ve noticed that your cordless drill is sparking, you’ve come to the right place.
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