Watch Glasses | McMaster-Carr

Filter by

Diameter

Material

For Maximum Beaker Diameter

Lid Material

Color

Magnification

Thickness

Export Control Classification Number (ECCN)

EAR99

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Maximum Temperature

500° F

840° F

DFARS Specialty Metals

RoHS

REACH

Mounting Location

Working Distance

Mount Type

Illumination

Lens Material

Number of Lenses

Lens Diameter

Frame Material

Lens Width

Adjustment Mechanism

Batteries Included

Lens Length

58 Products

Beaker Lids

Cover beakers or hold small quantities of powders and solutions. These lids are also known as watch glasses.

PTFE Lids—PTFE lids won't shatter like glass.

	Dia.	Thk.	Color	Max. Temp., ° F	Autoclavable		Each
PTFE Lids



	1 3/4"	2"	0.090"	White	500	Yes	3974T51	000000


	2 1/4"	2 1/2"	0.090"	White	500	Yes	3974T52	00000
	2 7/8"	3 1/8"	0.090"	White	500	Yes	3974T53	00000
	3 3/8"	3 7/8"	0.090"	White	500	Yes	3974T54	00000
	3 7/8"	4 7/8"	0.090"	White	500	Yes	3974T55	00000


	Soda-Lime Glass Lids



			2 1/4"	2 3/4"	0.047"	Clear	840	Yes	2068N11	0000


			2 5/8"	3 1/8"	0.047"	Clear	840	Yes	2068N12	0000
			3"	3 1/2"	0.047"	Clear	840	Yes	2068N13	0000
			3 1/2"	4"	0.047"	Clear	840	Yes	2068N14	0000
			4 1/4"	4 7/8"	0.047"	Clear	840	Yes	2068N15	00000
			5 1/8"	5 7/8"	0.047"	Clear	840	Yes	2068N16	00000

Illuminated Eyeglass-Mount Frame Loupe Magnifiers

A built-in LED on these wearable magnifiers shines a bright, even light so you don’t miss any scratches, dents, or nicks. They rest comfortably on your face so you can inspect objects up close without hunching over a handheld or bench-mount magnifier. First designed for jewelers, these magnifiers also work well for quality control and inspection. Swap out six included lens sets to switch between magnification levels ranging from 6X to 25X. The lenses are made of plastic, which are more lightweight and shatter resistant than glass lenses. The loupes flip up, so you don’t need to take them off completely between uses.

	Working Distance	Lens Dia.	Lens Material	Frame Material	Batteries Included	Includes		Each
LED



	6X, 8X, 10X, 15X, 20X, 25X	3/4", 1", 1 1/4", 2", 2 1/2", 3 1/4"	1"	Acrylic Plastic	Plastic	Yes	Interchangeable Lens	7099N11	000000

Adjustable-Focus Eyeglass-Mount Magnifiers

A dial on each arm of this eyeglass-mount magnifier allows you to focus the lenses independently.

Working Distance	Lens Dia.	Lens Material	Frame Material		Each



2X	16"	1 1/4"	Plastic	Plastic	3102T45	0000000

One-Eye Clip-On Eyeglass-Mount Magnifiers


1 Lens	2 Lenses

Clip these magnifiers onto the frame of your eyeglasses for viewing fine details— they flip out of the way when not in use.

Magnification	Working Distance	Lens Dia.	Lens Material	Frame Material		Each



1	3X	3 1/2"	0.94"	Acrylic Plastic	Acrylic Plastic	1340T1	000000


1	4X	2 1/2"	0.94"	Acrylic Plastic	Acrylic Plastic	1340T11	00000
1	7X	1 1/2"	0.94"	Acrylic Plastic	Acrylic Plastic	1340T2	00000
2	4X, 7X	1 1/2", 2 1/2"	0.94"	Acrylic Plastic	Acrylic Plastic	1340T3	00000
2	5X, 10X	1", 2"	0.94"	Acrylic Plastic	Acrylic Plastic	1340T8	00000

Eyeglass-Mount Frame Magnifiers

These magnifiers attach to a lightweight eyeglass-style frame, keeping both hands free for detail work such as inspection, assembly, or soldering. Designed for those who don't wear glasses.

		Lens
Magnification	Working Distance	Lg.	Wd.	Lens Material	Frame Material		Each



	1.75X	14"	1 1/8"	3 1/8"	Acrylic Plastic	Plastic	1344T21	000000


	2X	10"	1 1/8"	3 1/8"	Acrylic Plastic	Plastic	1344T25	00000
	2.5X	8"	1 1/8"	3 1/8"	Acrylic Plastic	Plastic	1344T26	00000
	2.75X	6"	1 1/8"	3 1/8"	Acrylic Plastic	Plastic	1344T23	00000

Clip-On Eyeglass-Mount Magnifiers

Always there when you need them, these eyeglass-mount magnifiers flip out of the way when not in use.

		Lens
Magnification	Working Distance	Lg.	Wd.	Lens Material	Frame Material		Each



	1.5X	20"	1 1/8"	3 1/8"	Acrylic Plastic	Plastic	6771T36	000000


	1.75X	14"	1 1/8"	3 1/8"	Acrylic Plastic	Plastic	6771T21	00000
	2X	10"	1 1/8"	3 1/8"	Acrylic Plastic	Plastic	6771T38	00000
	2.25X	8"	1 1/8"	3 1/8"	Acrylic Plastic	Plastic	6771T22	00000
	2.75X	6"	1 1/8"	3 1/8"	Acrylic Plastic	Plastic	6771T23	00000
	3.5X	4"	1 1/8"	3 1/8"	Acrylic Plastic	Plastic	6771T24	00000

Illuminated Headband-Mount Flip-Up Magnifiers


1 Lens	3 Lenses	4 Lenses

Make inspecting fine details easier—LED lights on these magnifiers emit a focused, even beam that is ideal for detailed work. These magnifiers are designed to fit over your prescription or safety glasses. Made from acrylic, their lenses are lightweight and shatterproof.

3 Lenses—Magnifiers with three lenses let you use a base lens with two other built-in lenses in different combinations for a total of four magnification levels.

	Magnifiers															Replacement Lenses for Magnifiers
				Lens						Batteries
	No. of Lenses	Magnification	Working Distance	Dia.	Lg.	Wd.	Lens Material	Frame Material	Bulb Included	Included	Size	No. Req.	Includes		Each		Each
LED



		1	1.75X	14"	—	1 1/8"	3 1/8"	Acrylic Plastic	Plastic	Yes	Yes	AAA	2	—	1500T2	000000	1500T12	000000


		1	2.25X	8"	—	1 1/8"	3 1/8"	Acrylic Plastic	Plastic	Yes	Yes	AAA	2	—	1500T4	00000	1500T14	00000
		1	2.75X	6"	—	1 1/8"	3 1/8"	Acrylic Plastic	Plastic	Yes	Yes	AAA	2	—	1500T5	00000	1500T15	00000
		3	2X, 3X, 5X, 6X	2" to 9 1/2"	1 7/16"	1 1/4"	3 1/2"	Acrylic Plastic	Plastic	Yes	No	AAA	3	—	1500T21	00000	———	0
		4	1.5X, 2X, 2.5X, 3X	6 1/2" to 20"	—	1 7/8"	4"	Acrylic Plastic	Plastic	Yes	No	AAA	3	One 1.5X Lens One 2.5X Lens One 2X Lens One 3X Lens	1500T1	00000	1500T11	00000

Headband-Mount Flip-Up Magnifiers

Designed to fit over prescription and safety glasses, these magnifiers help you read fine print and inspect parts.

A 2.5X magnifier serves as a bifocal. Also known as a loupe, it attaches to either side of your headband-mount magnifier.

Acrylic Plastic Lens—Magnifiers with an acrylic lens are lighter in weight than those with glass, and the lens won’t shatter if they’re dropped.

Glass Lens—A glass lens is clearer than acrylic and harder to scratch.

2 Lenses—Magnifiers with two lenses let you switch between two levels of magnification. The second lens flips down over the first to bring an object into sharper focus.

	Magnifiers								Replacement Lenses for Magnifiers		Replacement Magnifier Headbands		2.5X Magnifiers
				Lens
	No. of Lenses	Magnification	Working Distance	Lg.	Wd.	Frame Material		Each		Each		Each		Each
Acrylic Plastic Lens



		1	1.75X	14"	1 1/2"	4"	Plastic	11555T3	000000	11555T31	000000	1490T8	000000	———	0


		1	2.5X	8"	1 1/2"	4"	Plastic	11555T1	00000	11555T11	00000	1490T8	00000	———	0
		1	2.75X	6"	1 1/2"	4"	Plastic	11555T5	00000	11555T51	00000	1490T8	00000	———	0
		2	2X, 3X	4 1/4" to 8 1/2"	1 1/4"	3 1/2"	Plastic	1490T101	00000	———	0	———	0	———	0


		Glass Lens



				1	1.5X	20"	1 1/2"	4"	Plastic	1490T1	00000	1509T31	00000	1490T8	00000	1509T14	000000


				1	1.75X	14"	1 1/2"	4"	Plastic	1490T2	00000	1509T32	00000	1490T8	00000	1509T14	00000
				1	2X	10"	1 1/2"	4"	Plastic	1490T6	00000	1509T36	00000	1490T8	00000	1509T14	00000
				1	2.5X	8"	1 1/2"	4"	Plastic	1490T3	00000	1509T33	00000	1490T8	00000	1509T14	00000
				1	2.75X	6"	1 1/2"	4"	Plastic	1490T4	00000	1509T34	00000	1490T8	00000	1509T14	00000
				1	3.5X	4"	1 1/2"	4"	Plastic	1490T5	00000	1509T35	00000	1490T8	00000	1509T14	00000