wireless
In fact, each has its own advantages, the following is the introduction of these two machines. The biggest disadvantage of the Angle mill with a line is that it needs to pull a long wire, the rest is the advantage, it runs smoothly, has strength, and can work for a long time.
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The biggest advantage of the charging Angle mill is that it is convenient and can be used to pick up. The biggest disadvantage is that the battery is not durable, because it takes a long time to put the battery is a great test.