Bosch · GCL165-42GL
Ready to buy
The retained reference is $349 current U.S. retail price. Compatible receiver, tripod, pole and calibration service are separate. Verify line geometry, range conditions, mounts, included accessories, laser class, inspection procedure, authorized seller, warranty and return rights before purchase.
Current market
Each line carries its own check date because price, software, specifications, and product cycle do not age at the same speed.
Compatible receiver, tripod, pole and calibration service are separate. Confirm current stock, exact kit contents, authorized U.S. seller, tax, shipping, return rights and service eligibility before paying.
GCL165-42GL is defended for trades that need both lines and true plumb transfer without paying for three full planes.
Other paths
These are not generic competitors. Each one represents a different way to buy into the same market.
Bosch
Milwaukee
What changed
Older observations stay in the ledger when the current view changes. That lets a buyer tell the difference between an old complaint, an active issue, and a problem that was corrected.
GCL165-42GL was checked against exact identity, current U.S. price, geometry, laser class, range conditions, accuracy basis, leveling and slope, mount and detector compatibility, power, durability, calibration, service, safety and outcome boundaries, independent professional evidence and bounded operator reports.
Each amount stays tied to its source and capture date. Conflicting prices remain visible until the seller resolves them.
Current reference priceA structured timeline will begin with the next source capture
Owner experience
Owner and operator discussion returns to plumb-point pivot, receiver pairing, line width, magnetic mount and dual-power behavior rather than a universal accuracy, durability or productivity result.
These are self-selected reports from different units, distances, light, surfaces, weather, mounts, receivers, rods, batteries, drops, calibration histories, crews, sellers and service channels. They identify setup and inspection questions and do not establish accuracy, calibration retention, reliability, safety, failure rates, grade, level, plumb, square, productivity or finished-work outcomes.Self-selected operators discuss visibility, mounting, detector use, calibration checks, drops, batteries and service. Reports vary by distance, light, surface, setup and tool history and do not establish accuracy or reliability rates.
Check the plumb transfer against two marked points and buy the receiver only after its exact compatibility is confirmed.
1 evidence recordSources
The page separates what a source states directly from what we conclude across sources.
Bosch identifies GCL165-42GL as a green cross-line system adding up and down plumb transfer, fine pivot adjustment and an optional long-range receiver path.
$349 current U.S. retail price was retained for GCL165-42GL. Compatible receiver, tripod, pole and calibration service are separate
Class 2 green horizontal and vertical lines plus upward and downward plumb points; the points support floor-to-ceiling transfer but do not create room-square planes 100-foot stated visible line range and up to 330 feet on the horizontal line with the correct optional receiver; both figures depend on light, surface, pulse mode and receiver setup Published line accuracy is ±1/8 inch at 30 feet. Check horizontal, vertical and plumb-point coincidence separately using the manual procedure; a point can pass while a line or mount is disturbed Self-leveling pendulum operates within ±4 degrees and locks in the off position; preserve out-of-level indication and do not treat a locked transport state as a surveyed slope setting
Fine-adjust magnetic mount pivots around the plumb point and uses 1/4-20 threading. Receiver claims require the exact compatible green/red Bosch line receiver and its own maintained batteries and clamp Included 3.7 V 3.0 Ah battery, AA fallback, USB-C operation and IP65 housing; secure the fine mount and keep charging hardware outside wet exposure Bosch warranty and service terms apply to the exact tool and battery. Recheck after impact and protect the windows and pendulum. Class 2 still requires training, controlled placement and no direct or reflected viewing
FDA explains that Class 2 visible lasers depend on the aversion response and that Class 3R direct viewing can be hazardous. Product class does not make deliberate viewing or aiming at people acceptable.
OSHA construction rules require qualified operators, warning placards, shutter or power-off when unused, no direction at employees and positioning above head level where possible.
Professional comparison evaluates point, cross-line and three-plane tools by geometry, visible and receiver range, accuracy basis, power, mounts and job fit. It is decision context rather than manufacturer proof for every exact SKU.
Self-selected operators discuss visibility, mounting, detector use, calibration checks, drops, batteries and service. Reports vary by distance, light, surface, setup and tool history and do not establish accuracy or reliability rates.
GLL100-42GL is the compact cross-line layout defended alternative at $289 current U.S. retail price.
M12 Green Cross Line and 4-Point Laser Kit is the cross-line and multi-point transfer defended alternative at $629 current U.S. retail price.
Manufacturer identity, exact manual or support documentation, current U.S. price, independent professional decision evidence and bounded owner or operator evidence were checked on August 19, 2026. This desk covers complete current U.S.-supported point, line, plane and rotary laser layout systems used by trades and serious construction buyers. A detector, receiver or remote is part of the counted system only when bundled with the exact kit or intrinsic to its working method; otherwise it remains a separately priced compatibility boundary. The desk excludes bubble levels, laser distance meters, surveying total stations, unsupported marketplace devices, bare accessories, cosmetic bundles, minor color or battery-pack padding and duplicate tool-body or kit variants without a material system difference. Laser class, color and visual brightness do not establish useful range, accuracy or eye safety. Visible range and detector-assisted radius or diameter are separate claims that vary with light, weather, target, rotation speed and setup. Published accuracy belongs to a named geometry, distance, axis and condition and is not a calibration certificate. Points, lines, plane intersections, plumb, square, rotary axes, mounts, receiver zeros and rods can require separate checks. Self-leveling compensation, manual lock, fine rotation, automatic alignment and single- or dual-axis slope are different functions. Manual or receiver-guided slope does not import a design grade or establish survey control. Tripod stability, magnetic hold, clamp reference, thread compatibility, benchmark protection, battery state, ingress and post-impact checks remain operator duties. IP and drop claims do not guarantee retained calibration or cover open battery doors, all accessories, immersion or continued use after a fall. Follow the exact manual, FDA labeling and applicable OSHA construction-laser practice. Use qualified operators, warning controls, beam shutters or power-off when idle, and keep direct and reflected beams away from people and vehicles. Visibility glasses are not protective eyewear. Use manufacturer repair or calibration service when a field check fails and do not open the optical system. No construction laser guarantees code compliance, survey-grade control, grade, plumb, square, level, finished appearance, rework avoidance, productivity, safety or any job outcome.
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