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Bosch

Bosch GLL40-20G Green-Beam Self-Leveling Cross-Line Laser

Based on 1,474 reviews
Condition: New
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$145.00

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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Nov 23 – Nov 27
Order within 9 hours and 23 minutes

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At a glance

Condition
New
Style
40ft
Model
GLL40-20G
Dimensions
2.3"L x 3.3"W
Weight
8 oz
Color
Green,red
Material
Plastic
In the box
(1) GLL40-20G Green-Beam Self-Leveling Cross-Line Laser(1) Mounting Device(1) Pouch(2) AA Batteries

Features 10

  • Compact 40 Ft. cross-line laser design features green beams for visibility, plus self-leveling technology and VisiMax
  • VisiMax technology delivers maximum beam brightness, optimized energy efficiency and long-term tool reliability
  • Bright green-beam laser lines up to 2X brighter than standard red beams
  • Cross-line mode projects two bright lines that are precisely level and plumb, for a wide array of leveling and alignment applications

Description

The Bosch GLL40-20G Self-Leveling Cross-Line Laser projects visible green laser lines, which are up to 2X brighter than standard red beams. The tool has a working range of up to 40 Ft. and offers reliable accuracy of +5/16 in. at 30 Ft. It features Bosch-exclusive VisiMax technology, which monitors tool temperature and power consumption to deliver the brightest line for the job, optimized energy efficiency and long-term tool reliability. The cross-line laser is also equipped with a Smart Pendulum System allowing for automatic self-leveling and indication of out-of-level condition, as well as pendulum lock for safe tool transport. The included MM 2 Flexible Mounting Device provides a rotating 360 neck for quick setup and simple fine-tuning allowing for the laser to be clamped onto virtually any surface from 1/2 In. to 2-1/4 In. thick.

Specs 20

Brand Bosch
Material Plastic
Color Green,red
Product Dimensions 2.3"L x 3.3"W
Style 40ft
Brand Name Bosch
UPC 000346634792
Global Trade Identification Number 92

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 23 – Nov 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

Great little laser for setting wall tile
Review Image by J Evans
auto level @ + - 4 degrees, I mounted my unit on a tripod but the clamp provided works well also. This unit will burn through batteries, expect 3-4 hrs of runtime per set of AA batteries. I used this laser to set bathroom wall tile. No problems at all with the accuracy maintaining plumb and level lines. I haven't really tested it's ability or accuracy to work anymore than 4-8 ft away from my work surface, but I would guess the lines may get a little fuzzy and wide. I think the paperwork said 3/8-5/16 @ 40ft.. This is overcome by using the center of the beam and should be fine for most small projects.. All and all a great little laser for the price. ... show more
Reviewed in the United States on April 12, 2019 by J Evans
Great level
I've used bubble levels forever and on my latest project, a bathroom shower stall, this new level has been great. It is so much easier to get the ledger board installed for that first row of tiles on all three walls and then ensure my progress continues level up the wall. Then, vertical lines to get each wall and the offset tiles square. I have no problem seeing the the lines indoors. I was fighting that ledger board for a while--this made it easy. ... show more
Reviewed in the United States on May 16, 2021 by Keith L
Precisión y útil.
Me ha sido muy útil. De buena calidad y precisión.
Reviewed in the United States on August 18, 2025 by ROBERTO F.
Excellent
I shot in 6 walls for a new room using this and it worked fantastic. Very accurate. However keep in mind it is only going to be as accurate as your knowledge of using the tool. But for those of you that know how to use these, it is fantastic
Reviewed in the United States on March 22, 2024 by Micha S
Good little indoor laser
Good for kitchens and baths and any other interior needs. Does not work exterior in the daylight.
Reviewed in the United States on October 2, 2023 by Quality Matters
I love this thing
I purchased this to hang artwork in my new home, and it has made the job incredibly easy. I love the self leveling feature, and the green laser lines are crisp and bright.
Reviewed in the United States on May 26, 2024 by Kayla
Made it possible to tile my kitchen myself
DEFINITELY get this if you are going to tile anything. Used it with my photo tripod and it made my tile job look professional. Absolutely a good buy. Green laser is clearly visible. I don't know if it really reaches 40 ft though, edges of the laser lines were fading with less distance, so take "40ft" with a grain of salt, but it work really well for our medium sized kitchen. ... show more
Reviewed in the United States on February 14, 2023 by Dariushd
Not for outdoor use
Like all, or most others, needs to be close before it will self-level. Disappointed that it doesn't say "Not for outdoor use" in the product description. Works fine indoors with controlled environment. Couldn't see the line enough to use outdoors, even under porch roof on very overcast day.
Reviewed in the United States on December 30, 2021 by kurt2U
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