Have you ever encountered such a situation, the work efficiency of the electric hand drill you purchased is low, or it has been hot or even burned after a short time? People generally think that the performance of the electric hand drill is too low or the quality is too bad. But have you ever thought, does the specification of this electric hand drill is exactly what you need? Is it the most suitable for your work situation?
RE: Speed Range
As a professional power tool manufacturer, there are a variety of hand drill products to choose from. Normally, customers regard input power as the main parameter when choosing a drill product. They believe that the greater the power, the larger diameter that the hand drill can drill, and the faster the drilling speed is. This is not the case. The input power does not completely represent the performance of the machine, but only shows the total electric power consumed by the hand drill (Input power = motor heating loss + fan loss + mechanical friction loss + output power). Actually, what we need is not input power, but output power, which can really help us drill holes and screw. The real reason why customers buy power tools is to use these tools to drill or screw.
It is not that easy to find the output power directly when you find products online. Usually we can choose the no-load speed specification instead. Generally, the no-load speed can be divided into two gears: high speed and low speed (high speed: above 1000rpm, low speed: 300-1000rpm). A 2-speed gearbox will usually give you a higher RPM (Revs Per Minute) than a single speed and this gives even more control over your project. Because low-speed electric drills are more suitable for driving screws and drilling wood or small holes (soft materials, small holes). High-speed hand electric drills are more suitable for drilling steel or large holes (hard materials, large holes). Choose the correct speed gear, will get the best drilling speed. Of course, the application range of electric hand drill with speed regulation will be wider. In short, if you want to buy a suitable electric hand drill, you must first know what you want to do with it.
The least expensive drills run at a single speed, but most have two fixed speeds: 300 rpm and 1000 rpm. A slide switch or trigger lets you select high or low speed. For more refined carpentry and repair tasks, choose a drill that has the same two-speed switch and a trigger with variable speed control that lets you vary the speed from 0 rpm to the top of each range. And if you do more hole drilling than screw driving, look for more speed — 1,000 rpm or higher — at the top end.
Speed is a very key important feather to consider when selecting the correct drill. But not the only. There are some other feathers also should be taken into consideration according to your situation. Follow us to get continued and updated.