Line Lasers
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GLL50-20 Professional

Line Lasers

Self-Leveling Cross-Line Laser

  • Power flexibility – works with two AA batteries (included) or Bosch's 3.7V Lithium-Ion 1.0 Ah battery (sold separately), for less downtime on the job
  • Full rubber overmold housing - helps protect every major impact point, with a design similar to a roll cage
  • Integrated multipurpose laser mount - positions and mounts with magnets or threaded mounts (1/4 In.-20)
  • Jobsite tough construction - IP 55 rating offers dust- and water-resistance
  • Cross-line mode - projects two level and plumb lines
  • Bright, thin lines with 50 Ft. range - to level within 5/16 In. accuracy at 30 Ft. range
  • Smart Pendulum System - self levels, indicates out-of-level condition by blinking and locks when switched off for secure transport
  • Ergonomic, compact and lightweight - making the laser easy to use and easy to store
  • 1/4 In. threading mount - fits all tripods with 1/4 In. thread
  • Secure laser transport - after switching off, pendulum locks for secure transport
  • Bosch measuring and layout tools are covered by a one year limited warranty with an additional year when you register your tool within eight weeks of purchase - for details, visit https://rb-pt.io/PowerToolWarranty or call 1-877-BOSCH99
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Functions & key features

Working range of up to 50 Ft (15 m).
Versatile mounting solution with seamless rotation and stability for easy positioning and adjustment of lasers.
Works with mounts and tripods using a 1/4"-20 thread mount.
IP 55 - Protected against dust and water jets from any direction.​
Power flexibility - works with Bosch's 3.7V Lithium-Ion 1.0 Ah battery or two AA batteries.

GLL50-20 Professional

Technical data

The most important data

Connected No
Height in 3.9 "
IP Rating IP 55
Laser Beam Color Red
Laser Diode Class 2, <5 mW, 630-650 nm
Length in 4.1 "
Leveling Type Self-Leveling, Up to 3.5°
Material Plastic composite
Mount Threading 1/4-20
Number of Beams 2
Operating Temperature 14° F / -10° C up to 104° F / 40° C
Range Up to 50-ft.
Weight 0.77 lb
Weight (lbs.) 0.77
Width in 2.5 "
Works With Tripods, BT 150, Telescoping Pole System, BP350, Grade Rods, GR 16, GR500, Mounts and Positioning Devices, BM 1, BM3, LB10, MM 2, Battery, GLM-BAT
Includes (1) GLL50-20 Self-Leveling Cross-Line Laser
(2) AA Batteries
(1) Integrated Magnetic Mount

GLL50-20 Professional: Further information

Product Highlights

The Bosch GLL50-20 Self-Leveling Cross-Line Laser features a 50 Ft. range and cross-line mode that projects both horizontal and vertical red lines, allowing for leveling with a 5/16 In. accuracy at 30 Ft. With its power flexibility, operate using the included AA batteries or purchase Bosch's 3.7V Lithium-Ion 1.0 Ah Battery (sold separately) that allows use of the tool while charging to diminish downtime. Its ergonomic, compact, lightweight design and IP55 dust- and water-resistant rating provide for both comfortable and dependable operation. The full rubber overmold housing helps protect every major impact point, acting like a roll cage for safeguarding. Equipped with a Smart Pendulum System, the tool self levels, will indicate any out-of-level condition by blinking and then locks when switched off for secure transport. Simply tilt the laser to use the lines at an angle with ease. Position the tool with the included integrated magnetic mount or utilize the 1/4 In. threading mount that fits with like-sized tripods.

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