Published at Saturday, 25 August 2018. Impact Driver. By Darcy Stein.
BPM stands for "blows per minute". This is the number of screws that will be driven into a surface in 60 seconds. This is also another factor that should not be taken lightly. The higher the number of blows the better; this will determine the time that you will take to cover a particular area either drilling holes or screwing. The recommended capacity of blows is 2500 and above.
The last thing that you want to take home with you is a driver that will be too slow. Driving the screws through objects at a slow pace would really waste your time and you will have to postpone some work to further dates. Thus it is imperative to consider the speed of the driver. This is normally calculated in RPM i.e. (Revolutions per Minute). The driver should be able to spin faster, thereby releasing the screws at a faster rate. This will save you time as you will do a lot of work in a short while. A good combination that will make the impact driver be termed as the best would be the one that has got power and speed. An RPM of 2200 and above is recommended for those who are in quest of the best drivers in the market. Hey! Don't forget about the power also.
The first time I picked up an impact driver, a 12-volt Makita, I thought it looked, to me, like a toy. I then tried it out by driving a 3-inch deck screw into a 4" x 4" piece of fir. I was amazed as I watched (and felt) the tiny machine effortlessly drive the screw home, sinking the head below the surface of the wood. I had to remember to keep a lot of hand pressure against the tool so that the screw driver bit did not pop out of the screw head and strip it. From that moment forward, I have never been without one of these amazing machines at my side.
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