Line lasers are one of the most versatile tools that a tradesman can have in their arsenal. They are useful for a wide variety of tasks, from hanging pictures to aligning pipes. A line laser level projects a laser beam in a perfectly straight line, making it easy to transfer measurements from one point to another.

There are a lot of different line laser levels on the market, but two of the best are the Bosch GLL 3-80 and the Dewalt DW089K. Both of these laser levels are highly accurate and easy to use. They both have a lot of features that make them stand out from the competition.

The Bosch GLL 3-80 is a three-line laser level that projects red laser beams. It has a self-leveling feature that keeps the laser beams level, even if the tool is moved. The Bosch GLL 3-80 also has a manual mode, which allows the user to lock the laser beams in place. This is useful for when the laser level is being used in a fixed position, such as when aligning pipes. The Bosch GLL 3-80 is powered by four AA batteries and has a battery life of up to 20 hours. It is also dust and water-resistant, making it ideal for use in outdoor applications. The Bosch GLL 3-80 retails for $229.99.

The Dewalt DW089K is a three-line laser level that projects green laser beams. It also has a self-leveling feature, as well as a manual mode. The Dewalt DW089K is powered by three AA batteries and has a battery life of up to 20 hours. It is also dust and water-resistant. The Dewalt DW089K retails for $199.00.

Both the Bosch GLL 3-80 and the Dewalt DW089K are great line laser levels. They are both highly accurate and easy to use. They both have self-leveling features and manual modes. They are also both dust and water-resistant. The Bosch GLL 3-80 is slightly more expensive than the Dewalt DW089K, but it comes with a few extra features, such as a longer battery life and a higher level of dust and water resistance.