Pros / The Hammerhead HLCL01 projects its horizontal laser at 110 degrees, which allows you to cast a level line across multiple walls.

Cons / The company does not offer live chat support.

 Verdict / This laser line level does not have the best projection capabilities, but it is an effective and versatile tool that you can use for a number of projects.

The Hammerhead HLCL01 Compact Self-Leveling Cross Line Laser is a great tool that you can use in a number of situations for a variety of projects. The tool, as the name suggests, is self-leveling, so you don't have to spend meticulous time finding a perfect level or plumb line. Overall, the tool ranks among the best laser line levels, but it isn't as competitive as the very best in certain areas, such as accuracy ratings and projection capabilities.

This self-leveling laser line level uses an internal pendulum to make sure the tool produces a perfectly level or plumb line. Because of this, you can place the tool itself approximately four degrees out of level and the pendulum adjusts the difference. As soon as you set the laser up, or if you bump it, the level takes approximately five seconds to settle into position. If the level is placed outside the four-degree range, an LED at the top of the unit turns red and the laser flashes repeatedly, so you'll know it needs to be adjusted. You can lock the pendulum in place so you can project a line out of level when needed.

The laser line level has a working range of 30 feet with an accuracy rating of a quarter inch. This distance and accuracy rating is not the best out of the laser line levels we reviewed, but it is still very effective. During our testing process, we found that this laser line level produces a line at 110 degrees, which is rather wide, meaning you can project a line across an entire wall or two walls. This feature is especially useful when you want to hang pictures at the same height on two or more walls.

The HLCL01 requires two AA batteries that are included with the tool, and they give you approximately 15 hours of continuous use. This battery life is impressive and ensures that you don't have to constantly replace the batteries or worry about the level dying on you mid-project. The level comes with an adjustable clamp that you attach to the tool with standard quarter-inch tripod threading. This means you can use most camera tripods with the tool, which is very useful.

The company offers a three-year limited warranty, which is the longest warranty time we found in laser line levels. If you run into any trouble with the product, you can download an online user manual or check out the FAQs section to see if any of your questions have already been answered. You can also contact the company through email or over the phone. Unfortunately, the company does not offer live chat support.

While this laser line level is a good choice, it wasn't our top pick. That honor went to DeWalt DW088K.

Hammerhead HLCL01 Visit Site
  • Self-leveling Compensation
  • Leveling Duration
  • Distance
  • Horizontal Fan Angle
  • Battery Life
  1. The maximum degree at which the level can be placed out of level but still project a level line.
    More is better.
  2. 5  Hammerhead
    4.0 Degrees
  3. 1  DeWALT
    4.0 Degrees
  4. 4.0 Degrees
  5. 3  Skil
    4.0 Degrees
  6. Category Average
    4.31 Degrees


The Hammerhead HLCL01 is a great option when you are looking for a laser line level. It projects lines up to 30 feet with a quarter-inch accuracy rating, which isn't the best out of the products we reviewed but is still highly functional and accurate. The AA batteries provide around 15 hours of continuous use, so you'll get plenty of work out of the level before needing to replace batteries. Overall, the Hammerhead is a great laser line level and is among the best tools we reviewed.

Hammerhead HLCL01 Visit Site

Specifications and Benchmarks

Help & Support

Limited Warranty
3 Years
Online Manual
Live Chat

Projection Range

Distance (feet)
Horizontal Fan Angle (degrees)
Height Accuracy (inches)
Cross Beam
Individual Beams


Length (inches)
Width (inches)
Height (inches)
Weight (pounds)
Requires Batteries
2 AA
Battery Life (hours)
Tripod Mountable
Built-in Mount
Magnetic Mount
Clamp Mount
Suction Cup Mount
Adhesive Mount

Leveling Features

Self-leveling Compensation (degrees)
Leveling Duration (seconds)
Out-of-Level Indicator
Manual Lock