Line Levels | McMaster-Carr

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25 Products

Long-Distance Line Levels

Create a horizontal reference point you can use when installing a fence, creating a grade line, or working across other long distances. Hang these levels from the center of a string stretched between two points, pull the line taut, and the bubble in the vial will let you know when the string is level. They're ideal when you're working on grass, dirt, or other uneven surfaces.

				Housing
Lg.	Sensitivity	No. of Horiz. Vials	Vial Material	Material	Color		Each



	3"	0.132"/1 ft., 38 min/0.1"	1	Plastic	Aluminum	Silver	0000000	00000


	3"	0.132"/1 ft., 38 min/0.1"	1	Plastic	Plastic	Black	0000000	0000

Adjustable Dot-to-Line Laser Levels

Twist the head to switch between a dot, a horizontal line, or a vertical line. These lasers project accurate level references onto walls, ceilings, and equipment. The laser is red and is best viewed indoors.

When a single point of reference is enough, use a dot. Lines give you an extended reference, so you can level several objects without moving the laser. For stability, mount these lasers to a tripod (sold separately), or attach the magnetic base to a metal surface.

Strap Mount—Lasers with a strap mount can also be secured to nonmagnetic surfaces.

		Size				Overall			No. of Vials						Mounting Holes
Leveling and Aligning Accuracy	Max. Laser Distance, ft.	Dot @ Distance	Line @ Distance	Laser Class	Wavelength Range, nm	Lg.	Wd.	Ht.	Horiz.	Vert.	45°	Cross Check	Sensitivity	Mount Type	No. of	Thread Size	Magnet Material	Batteries Included		Each
-1/8" to 1/8" @ 50 ft.	100	1/4" @ 50 ft.	1/4" @ 50 ft.	FDA Class IIIa	640 to 660	7 3/8"	1"	2"	1	1	—	1	0.133"/1 ft., 38 min/0.1"	Strap, Screw On, Magnetic Base	1	1/4"-20	Neodymium	Yes	000000	0000000
-1/8" to 1/8" @ 50 ft.	100	5/16" @ 50 ft.	3/8" @ 50 ft.	FDA Class IIIa	640 to 660	8"	1 1/4"	3 1/2"	1	1	1	1	0.126"/1 ft., 36 min/0.1"	Screw On, Magnetic Base	1	1/4"-20	Neodymium	Yes	0000000	00000

Tripods

Ht.	For Mounting Hole Thread Size	Material		Each
16" to 51"	1/4"-20	Aluminum	0000000	000000

Plumb Bobs with Cord Reel

Use the pin, adjustable hook, or magnet to mount. Suspend the bob and use the cord as a vertical reference line. The cord retracts when not in use.

				Cord
	Wt., oz.	Lg.	Dia.	Lg., ft.	Material	Body Shape	Point Replaceable		Each
Chrome-Plated Steel



		14	5 7/8"	1 1/4"	14 1/2	Braided Plastic	Round	No	0000000	000000

Crosshair Line Automatic Leveling Laser Levels

Shown with Tripod

Red

Laser

Green

Laser

Project two intersecting lines to ensure equipment is level and plumb. Set these laser levels on any surface and they'll level themselves within about 4°. They’re often used to align bench tops in shops and labs.

Red Laser—Red lasers are dimmer than green lasers, so they’re best viewed indoors. Use the included tripod to position them up to 46” high.

Green Laser—Green lasers appear up to 10 times brighter than red lasers, so they can be used from farther distances and in brightly lit areas, including outdoors. Use the included magnetic target to make your laser beam easier to see from a distance. They have a magnetic base and can be affixed to flat surfaces when mounting holes are not available.

						Overall						Mounting Holes			Batteries
	Max. Laser Distance, ft.	Leveling and Aligning Accuracy	Line Size @ Distance	Laser Class	Wavelength, nm	Lg.	Wd.	Ht.	Includes	Mount Type	Mounting Fasteners Included	No. of	Thread Size	Magnet Material	Included	No. Req.	Type	Size	Voltage, V DC	Enclosure Rating	Container Type		Each
Red Laser



		100	-1/4" to 1/4" @ 35 ft.	1/8" @ 50 ft.	FDA Class IIIa	625 to 645	4"	3 1/2"	5"	Tripod	Screw On	No	1	5/8"-11	—	No	3	Disposable	AAA	—	IP54	Carrying Case	0000000	0000000


		Green Laser



				125	-1/8" to 1/8" @ 35 ft.	1/8" @ 50 ft.	FDA Class II	510 to 530	5"	2 3/4"	4 1/2"	Magnetic Target	Screw On, Magnetic Base	Yes	1	1/4"-20	Neodymium	Yes	1	Rechargeable	—	3.7	IP64	Carrying Case	0000000	000000

Tripods

Ht.	For Mounting Hole Thread Size	Material		Each
16" to 51"	1/4"-20	Aluminum	0000000	000000

Combination Crosshair Line and Multiple Dot Automatic Leveling Laser Levels


2 Dots	5 Dots (Front View)

5 Dots (Back View)

Level equipment with confidence—in addition to a crosshair, these lasers also project plumb dots, so you know the laser is in the right spot. They’re an upgrade from a standard crosshair laser while remaining simpler than lasers with multiple crosshairs. Use these lasers to precisely install square elements, such as doors and windows. The crosshair extends along your wall, so you don’t have to reposition the laser often as you work around your room. If you set them on a surface, these lasers level themselves within about 4° and indicate when they are out of level. You can turn this function off when you want to make sure your crosshair is level with something other than the Earth.

Secure them to a tripod using the threaded mount or use the strong magnetic base to attach them to equipment. They come with a magnetic target, which you can mount in your space to reflect the laser beam to increase its visibility in dim conditions and at far distances.

2 Dots—Levels with two laser dots help you verify your installation is plumb with reference points above and below the tool. These red lasers are best for indoor environments, since they’re dimmer than green lasers.

5 Dots—Levels with five laser dots help you verify that your tool is positioned correctly in multiple dimensions with reference points above, below, behind, and to the sides of the tool without repositioning your laser. These green lasers appear up to 10 times brighter than red lasers, so they’re easier to see outdoors or in bright indoor lighting, as well as from far away.

			No. of				Overall					Mounting Holes		Batteries
	Max. Laser Distance, ft.	Leveling and Aligning Accuracy	Crosshair Lines	Dots	Laser Class	Wavelength Range, nm	Lg.	Wd.	Ht.	Includes	Mounting Fasteners Included	No. of	Thread Size	Included	Charger Included	Enclosure Rating		Each
Red Laser—Disposable Battery



		165	-1/8" to 1/8" @ 33 ft.	1	2	FDA Class II	635 to 650	4 3/8"	2 1/4"	4 1/4"	Magnetic Target, Wall/Ceiling Mount Bracket	No	2	1/4"-20 5/8"-11	Yes	—	IP54	0000000	0000000


		Green Laser—Rechargeable Battery



				200	-1/8" to 1/8" @ 50 ft.	1	5	FDA Class IIIa	510 to 530	5 1/4"	2 1/2"	5 1/4"	Magnetic Target	No	2	1/4"-20 5/8"-11	Yes	Yes	IP54	0000000	000000

Tripods

Ht.	For Mounting Hole Thread Size	Material		Each
16" to 51"	1/4"-20	Aluminum	0000000	000000

Plumb Bob Reels

Retrieve your plumb bob without tangles—these reels quickly retract the cord.

Plumb Bob Reels										Replacement Cords
	Cord
For Plumb Bob Wt., oz.	Lg., ft.	Material	Color	Winding Method	Housing Material	Lg.	Wd.		Each	Cord Lg., ft.		Each
16 to 32	6 1/2	Braided Nylon	Red	Automatic	Plastic	2 1/8"	2"	0000000	000000	72	0000000	000000
16 to 32	12	Braided Nylon	Red	Automatic	Plastic	2 1/4"	2 1/8"	0000000	00000	72	0000000	00000

Plumb Bobs


Chrome-Plated Steel	Brass-Plated Steel

Remove the cap to connect a cord. Suspend the bob and use the cord as a vertical reference line.

					Point
	Wt., oz.	Lg.	Dia.	Body Shape	Material	Replaceable		Each
Chrome-Plated Steel



		5	3 1/2"	7/8"	Hex	Steel	No	0000000	00000


		8	4"	1"	Hex	Steel	No	0000000	0000
		12	4 1/2"	1 1/8"	Hex	Steel	No	0000000	00000


		Brass-Plated Steel



				8	4 3/8"	1 1/8"	Round	Steel	Yes	000000	00000


				12	5"	1 3/8"	Round	Steel	Yes	000000	00000
				16	5 1/4"	1 3/8"	Round	Steel	Yes	000000	00000
				24	6 1/8"	1 7/8"	Round	Steel	Yes	000000	00000
				32	7 1/8"	2"	Round	Steel	Yes	0000000	00000

Accessories and Replacements for Plumb Bobs

		Each
25-yd. Plumb Bob Cord Spool	000000	00000
Replacement Steel Point for Brass-Plated Steel Plumb Bobs	000000	0000

360° Sweeping-Line Automatic Leveling Laser Levels

Green Laser with Magnetic Target

Set these lasers on any surface and they’ll level themselves horizontally within about 4°. They emit a beam of light 360° around the base, so you won’t have to keep repositioning them as you move around a space. Use them to align machinery, install conveyors, and check if walls are plumb. Visual and audible alarms alert you when the laser is beyond its leveling range. Adjust their vertical position manually. Mount these lasers to a tripod (not included) to level at a greater range of heights.

Green Laser—Green lasers are four times brighter than red lasers, so you can see the beam outdoors and in bright lighting. They’re also easier to spot from far away. These lasers include a magnetic target, which you can mount at the height you need to reflect the beam, making it brighter and easier to see from a distance.

				Size					Overall						Mounting Holes		Batteries
	No. of Dots	Max. Laser Distance, ft.	Leveling and Aligning Accuracy	Dot @ Distance	Line @ Distance	Laser Class	Wavelength, nm	No. of Rotational Speeds	Lg.	Wd.	Ht.	Includes	Mount Type	Mounting Fasteners Included	No. of	Thread Size	Included	No. Req.		Each
Green Laser



		1	400	-3/16" to 3/16" @ 100 ft.	1/2" @ 50 ft.	3/8" @ 100 ft.	FDA Class IIIa	510 to 530	4	7 1/8"	6 3/8"	8"	Magnetic Target, Remote Control, Wall/Ceiling Mount Bracket	Screw On	No	2	5/8"-11	Yes	1	00000000	000000000

Combination Six Crosshair Line Automatic Leveling Laser Levels

No need to reposition these lasers as you work around your room—crosshairs on every surface give you all the reference points you need. They are a good choice for level, plumb, and square applications, such as aligning doors and windows on multiple walls. If you set them on a surface, they level themselves within about 4° and indicate when they are out of level. You can turn this function off when you want to make sure your crosshair is level with something other than the Earth.

						Overall						Mounting Holes		Batteries
Laser Color	Leveling and Aligning Accuracy	Max. Laser Distance, ft.	Line Size @ Distance	Laser Class	Wavelength Range, nm	Lg.	Wd.	Ht.	Includes	Mount Type	Mounting Fasteners Included	No. of	Thread Size	Included	Charger Included	Enclosure Rating		Each
Green	-1/8" to 1/8" @ 35 ft.	330	1/8" @ 50 ft.	FDA Class II	510 to 530	5 1/2"	2 5/8"	4 1/2"	Magnetic Target, Wall/Ceiling Mount Bracket	Screw On, Magnetic Base	Yes	1	1/4"-20	Yes	Yes	IP64	0000000	0000000

Tripods