Center-Finding Rulers

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90 Products

About High-Quality Rulers

What separates a throwaway ruler from one you’ll keep for decades, which type is best for everyday use, and how to compare materials.

Quickly locate the center of workpieces without any math. Just align these rulers so that the same measurement appears on both sides of the object—zero marks your center.

Corrosion-Resistant Stainless Steel

Image of Product. Front orientation. Rulers. Center-Finding Rulers.

These rulers won't rust when rinsed, rained on, or wiped down with degreasers or cleaning solutions. They're hardened to prevent dents and scratches, so you can trust they'll last for years to come. Etched and filled with black ink, their graduations won't rub off like printed graduations can.

						Rulers
	Lg.	Front Graduations (Numeric Graduations)	Back Graduations (Numeric Graduations)	Wd.	Thk.		Each
Inch







				Left-to-Right Reading Direction/Right-to-Left Reading Direction

				12"	1/16" (1"), 1/32" (1")	—	1 1/4"	1/32"	2346A23	000000


				18"	1/16" (1"), 1/32" (1")	—	1 1/4"	1/32"	2346A28	00000
				24"	1/16" (1"), 1/32" (1")	—	1 1/4"	1/32"	2346A25	00000
				36"	1/16" (1"), 1/32" (1")	—	1 1/4"	1/32"	2346A26	00000
				48"	1/16" (1"), 1/32" (1")	—	1 1/4"	1/32"	2346A27	00000


				Inch/Metric







								Left-to-Right Reading Direction/Right-to-Left Reading Direction

								18"/45 cm	1/16" (1"), 1/16" (1")	1 mm (1 cm), 1 mm (1 cm)	1 1/4"	1/32"	2346A31	00000


								24"/60 cm	1/16" (1"), 1/16" (1")	1 mm (1 cm), 1 mm (1 cm)	1 1/4"	1/32"	2346A32	00000
								36"/90 cm	1/16" (1"), 1/16" (1")	1 mm (1 cm), 1 mm (1 cm)	1 1/4"	1/32"	2346A33	00000

See-Through Rulers


Center Finding Style A	Center Finding Style B

Center Finding Style C

Line up these rulers exactly where you need them—they're clear plastic, so you'll never lose sight of what you're measuring. A staple of most sewers' kits, they're especially useful when working with intricate designs, lines, and patterns. All are laminated to protect their graduations from scratching and fading.

Center Finding—These rulers come with a center-finding scale, so you can quickly locate the center of workpieces without any math. Just align the scale so that the same measurement appears on both sides of the object—zero marks your center.

Red Graduation Marks—Easier to read than black graduation marks when measuring over black lines and text.

Stainless Steel Edge—Best for cutting and inking straight lines, these rulers have a stainless steel edge that guards the plastic from nicks and stains.

	Lg.	Front Graduations (Numeric Graduations)	Wd.	Thk.	Graduation Color	Material	Edge Material		Each
Inch with Center-Finding Scale



	A	12"	1/16" (1"), 1/16" (1"), 1/16", 1/16", 1/8" (1")	2"	1/32"	Red	Plastic	—	20345A25	00000


	A	18"	1/16" (1"), 1/16" (1"), 1/16", 1/16", 1/8" (1")	2"	1/32"	Red	Plastic	—	20345A28	0000
	B	12"	1/16" (1"), 1/16" (1"), 1/16", 1/16" (1")	1 1/2"	1/8"	Black	Plastic	Stainless Steel	20345A21	00000


	Inch/Metric with Center-Finding Scale



			C	12"/30 cm	1/16" (1"), 1 mm (1 cm), 1/8" (1")	1"	1/32"	Red	Plastic	—	20345A35	0000

Pocket Center-Finding Rulers

Find the center of workpieces on the go—these rulers are no bigger than a pen to tuck into your pocket. They come with a clip to keep them from falling out or getting misplaced. To find a center, align them so that the same measurement appears on both sides of the object. Zero marks your center—no math required.

Lightweight Aluminum

About as lightweight as plastic rulers, these rulers are convenient to carry from site to site. They keep their bright finish even if frequently rinsed.

					Rulers
	Lg.	Front Graduations (Numeric Graduations)	Wd.	Thk.		Each
Inch







				Left-to-Right Reading Direction/Right-to-Left Reading Direction

				6"	1/32" (1"), 1/16" (1")	3/4"	3/64"	4892N12	00000


				Metric







								Left-to-Right Reading Direction/Right-to-Left Reading Direction

								16 cm	1 mm (1 cm), 1 mm (1 cm)	3/4"	3/64"	4892N13	0000

Half-Measure Adhesive-Back Rulers

Take division out of the equation when building half-scale models and prototypes. The distance between the graduations on these rulers is half the printed measurement—just use your object's true dimensions to get a model half its size. Stick these rulers to your bench top for a permanent, hands-free measuring guide.

Extra-Flexible Plastic

Image of Product. Front orientation. Contains Annotated. Rulers. Half-Measure Adhesive-Back Rulers.

These rulers are flexible enough to conform to curved surfaces without snapping.

	Thk.	Color	No. of Segments		Each
Inch







	Left-to-Right Reading Direction

	1 1/2 ft.	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	1	19425A41	00000


	3 ft.	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	1	19425A42	0000
	6 ft.	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	2	19425A43	00000
	7 1/2 ft.	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	2	19425A61	00000
	11 1/4 ft.	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	3	19425A63	00000




			Right-to-Left Reading Direction

			1 1/2 ft.	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	1	19425A44	0000


			3 ft.	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	1	19425A45	0000
			6 ft.	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	2	19425A46	00000
			7 1/2 ft.	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	2	19425A62	00000
			11 1/4 ft.	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	3	19425A64	00000


			Inch/Metric







							Left-to-Right Reading Direction

							2 1/16 ft./0.6 m	1/8" (1"), 2 mm (1 cm)	1"	0.015"	Silver	1	19425A101	0000


							4 1/8 ft./1.2 m	1/8" (1"), 2 mm (1 cm)	1"	0.015"	Silver	1	19425A102	0000


							Metric







											Left-to-Right Reading Direction

											0.5 m	1 mm (1 cm)	1"	0.014"	White	1	19425A103	0000


											1 m	1 mm (1 cm)	1"	0.014"	White	1	19425A104	0000

Center Finders for Curved Surfaces

Center your work by mounting these into your drill chuck or collet and lining up the pointer with the mark on the shaft.

For Max. Dia.	Material		Each
5"	Chrome-Plated Steel	22025A11	000000

Pocket Protractors

Small enough to fit in your pocket, this versatile tool measures angles and dimensions and has a center finder. Also known as a bevel protractor, it has an adjustable arm. Protractor is corrosion-resistant stainless steel with wear-resistant etched markings.

				Arm			Graduation
	Degree Angle Measured Range	Degree Graduations (Angle Increments)	No. of Arms	Lg.	Wd.	Color	Color	Type	Ruler Front Graduation Marks (Numeric Increments)	Measuring Features		Each
Stainless Steel







				Inch/Metric

				0° to 180°	1° (10°)	1	4 1/2"	5/16"	Silver	Black	Etched	1 mm (1 cm), 1/64" (8/64")	59° Drill Point Gauge, Center Finder, Circle Divider, Tap and Drill Reference Table	2106A11	000000

Starrett High-Accuracy Combination Squares

Replace your try square, miter square, depth gauge, height gauge, center-point finder, and level. The blade on these squares meets Fed. Spec. GGG-R-791H, which establishes uniform standards for accuracy, graduations, and size. Blades are labeled with numeric increments that are less than 1" for quick reading.

Blades with Square Head and Center Head


	Inch

Square head checks 90° angles.

Center head identifies the center on pipes, rods, and shafts.

Satin Blade—Satin blade appearance is corrosion resistant and reduces glare.

Etched—Etched graduation marks are wear resistant.

					Blade					Graduation		Cast Iron Square Head
	Blade Lg.	Front Graduations (Numeric Graduations)	Back Graduations (Numeric Graduations)	Lg. Accuracy	Wd.	Thk.	Material	Appearance	Color	Color	Type	Head Lg.		Each
Inch



		4"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.002" to 0.004"	5/8"	1/16"	Steel	Satin	Chrome, Silver	Black	Etched	2 1/4"	2108A11	0000000

Replacement Square Head Lockbolts

		Each
Replacement Lockbolt for Square and Center Heads	1955A81	000000

Blades with Square Head with Built-In Level, Center Head, and Scriber


	Inch

Square head checks 90° angles.

Center head identifies the center on pipes, rods, and shafts.

Hardened Steel Square Head—Hardened-steel square heads are more durable and last longer than cast iron square heads.

Satin Blade—Satin blade appearance is corrosion resistant and reduces glare.

Etched—Etched graduation marks are wear resistant.

					Blade					Graduation		Cast Iron Square Head			Hardened Steel Square Head
	Blade Lg.	Front Graduations (Numeric Graduations)	Back Graduations (Numeric Graduations)	Lg. Accuracy	Wd.	Thk.	Material	Appearance	Color	Color	Type	Head Lg.		Each	Head Lg.		Each
Inch



		6"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.002" to 0.004"	3/4"	5/64"	Steel	Satin	Chrome, Silver	Black	Etched	—	———	0	2 13/32"	2107A12	0000000


		12"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.0035" to 0.005"	1"	3/32"	Steel	Satin	Chrome, Silver	Black	Etched	4 1/2"	2108A13	0000000	3 5/8"	2107A13	000000

Replacements for Squares

		Each
Replacement Case for Combination Squares with 12" Long Blade	4264N11	0000000
Replacement Lockbolt for Center Heads	1955A85	00000
Replacement Lockbolt for Square and Center Heads	1955A82	00000
Replacement Lockbolt for Square, Center, and Protractor Heads	1955A83	0000

Blades with Square Head with Built-In Level, Center Head, Protractor Head, and Scriber


	Inch

Square head checks 90° angles.

Protractor head measures angles.

Center head identifies the center on pipes, rods, and shafts.

Etched—Etched graduation marks are wear resistant.

					Blade				Graduation		Cast Iron Square Head
	Blade Lg.	Front Graduations (Numeric Graduations)	Back Graduations (Numeric Graduations)	Lg. Accuracy	Wd.	Thk.	Material	Color	Color	Type	Head Lg.		Each
Inch



		12"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.0035" to 0.005"	1"	3/32"	Steel	Silver	Black	Etched	4 1/2"	2108A57	0000000


		18"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.0035" to 0.006"	1"	3/32"	Steel	Silver	Black	Etched	4 1/2"	2108A58	000000
		24"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.0035" to 0.007"	1"	3/32"	Steel	Silver	Black	Etched	4 1/2"	2108A59	000000

Replacements for Squares

Blades with Square Head with Built-In Level, Center Head, Reversible Protractor Head, and Scriber


	Inch/Metric

Inch

Square head checks 90° angles.

Protractor head measures angles.

Center head identifies the center on pipes, rods, and shafts.

Hardened Steel Square Head—Hardened-steel square heads are more durable and last longer than cast iron square heads.

Satin Blade—Satin blade appearance is corrosion resistant and reduces glare.

Etched—Etched graduation marks are wear resistant.

					Blade					Graduation		Cast Iron Square Head			Hardened Steel Square Head
	Blade Lg.	Front Graduations (Numeric Graduations)	Back Graduations (Numeric Graduations)	Lg. Accuracy	Wd.	Thk.	Material	Appearance	Color	Color	Type	Head Lg.		Each	Head Lg.		Each
Inch



		12"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.0035" to 0.005"	1"	3/32"	Steel	—	Silver	Black	Etched	4 1/2"	2108A51	0000000	—	———	0


		12"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.0035" to 0.005"	1"	3/32"	Steel	Satin	Chrome, Silver	Black	Etched	—	———	0	3 5/8"	2107A51	0000000
		12"	1/32" (4/32"), 1/64" (8/64")	1/50" (1/10"), 1/100" (1/10")	-0.0035" to 0.005"	1"	3/32"	Steel	—	Silver	Black	Etched	4 1/2"	2108A54	000000	—	———	0
		12"	1/32" (4/32"), 1/64" (8/64")	1/50" (1/10"), 1/100" (1/10")	-0.0035" to 0.005"	1"	3/32"	Steel	Satin	Chrome, Silver	Black	Etched	—	———	0	3 5/8"	2107A54	000000
		18"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.0035" to 0.006"	1"	3/32"	Steel	—	Silver	Black	Etched	4 1/2"	2108A52	000000	—	———	0
		18"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.0035" to 0.006"	1"	3/32"	Steel	Satin	Chrome, Silver	Black	Etched	—	———	0	3 5/8"	2107A52	000000
		18"	1/32" (4/32"), 1/64" (8/64")	1/50" (1/10"), 1/100" (1/10")	-0.0035" to 0.006"	1"	3/32"	Steel	Satin	Chrome, Silver	Black	Etched	—	———	0	3 5/8"	2107A55	000000
		24"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.0035" to 0.007"	1"	3/32"	Steel	—	Silver	Black	Etched	4 1/2"	2108A53	000000	—	———	0
		24"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.0035" to 0.007"	1"	3/32"	Steel	Satin	Chrome, Silver	Black	Etched	—	———	0	3 5/8"	2107A53	000000
		24"	1/32" (4/32"), 1/64" (8/64")	1/50" (1/10"), 1/100" (1/10")	-0.0035" to 0.007"	1"	3/32"	Steel	Satin	Chrome, Silver	Black	Etched	—	———	0	3 5/8"	2107A56	000000


		Inch/Metric



				11 3/4"/300 mm	0.5 mm (10 mm), 1/32" (4/32")	1 mm (10 mm), 1/64" (8/64")	-0.0035" to 0.005"/ -0.09 mm to 0.15 mm	1"	3/32"	Steel	—	Silver	Black	Etched	4 1/2"	2108A55	000000	—	———	0


				11 3/4"/300 mm	0.5 mm (10 mm), 1/32" (4/32")	1 mm (10 mm), 1/64" (8/64")	-0.0035" to 0.005"/ -0.09 mm to 0.15 mm	1"	3/32"	Steel	Satin	Chrome, Silver	Black	Etched	—	———	0	3 5/8"	2107A57	000000
				23 1/2"/600 mm	0.5 mm (10 mm), 1/32" (4/32")	1 mm (10 mm), 1/64" (8/64")	-0.0035" to 0.007"/ -0.11 mm to 0.25 mm	1"	3/32"	Steel	—	Silver	Black	Etched	4 1/2"	2108A56	000000	—	———	0

Replacements for Squares

High-Accuracy Combination Square Blades

Blades are for use with High-Accuracy Combination Square Heads. Blades are labeled with numeric increments that are less than 1" for quick-reading. All have a corrosion-resistant satin chrome-plated finish that reduces glare and wear-resistant etched markings.

								Graduation
	Lg.	Front Graduations (Numeric Graduations)	Back Graduations (Numeric Graduations)	Lg. Accuracy	Wd.	Thk.	Color	Color	Type		Each
Inch







				Satin Chrome-Plated Steel

				6"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.0025" to 0.0025"	3/4"	5/64"	Silver	Black	Etched	21115A41	000000


				6"	1/32" (4/32"), 1/64" (8/64")	1/50" (1/10"), 1/100" (1/10")	-0.0025" to 0.0025"	3/4"	5/64"	Silver	Black	Etched	21115A42	00000
				12"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.0025" to 0.0025"	1"	3/32"	Silver	Black	Etched	21115A21	00000
				12"	1/32" (4/32"), 1/64" (8/64")	1/50" (1/10"), 1/100" (1/10")	-0.0025" to 0.0025"	1"	3/32"	Silver	Black	Etched	21115A22	00000
				18"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.0025" to 0.0025"	1"	3/32"	Silver	Black	Etched	21115A23	00000
				18"	1/32" (4/32"), 1/64" (8/64")	1/50" (1/10"), 1/100" (1/10")	-0.0025" to 0.0025"	1"	3/32"	Silver	Black	Etched	21115A24	00000
				24"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.0025" to 0.0025"	1"	3/32"	Silver	Black	Etched	21115A25	000000
				24"	1/32" (4/32"), 1/64" (8/64")	1/50" (1/10"), 1/100" (1/10")	-0.0025" to 0.0025"	1"	3/32"	Silver	Black	Etched	21115A26	000000

Center-Finding Tape Measures

Locate the exact midpoint of a workpiece without doing math. Just measure the total distance with the upper scale, then find the same number on the bottom scale—that's your center.

					Blade		Case
	Lg., ft.	Graduations	Numeric Graduations	Tip Style	Wd.	Material	Material	Color		Each
Manual Blade Lock



		16	1/16"	1", 1 ft.	Hook	3/4"	Coated Steel	Plastic	Yellow	6807A16	000000


		25	1/16"	1", 1 ft.	Hook	1"	Coated Steel	Plastic	Yellow	6807A18	00000

High-Accuracy Combination Square Heads

Attach to High-Accuracy Combination Square Blades with the included lockbolts.

Center Heads

Center heads identify the center on pipes, rods, and shafts.

Zinc Alloy—Zinc alloy heads are lightweight and corrosion resistant.

Cast Iron—Cast iron heads are durable, so they resist dents and scratches. However, they corrode more easily than zinc alloy heads.

Hardened Cast Iron—Hardened cast iron heads are more durable and last longer than cast iron heads.

	Combination Square Center Heads			Replacement Square Head Lockbolts
	For Blade Lg.		Each		Each
Zinc Alloy



		12" to 24"	21115A52	00000	21115A101	00000


		Cast Iron



				12" to 24"	21115A29	00000	21115A36	0000


				Hardened Cast Iron



						12" to 24"	21115A31	00000	21115A36	0000

Starrett High-Accuracy Combination Square Heads

Attach to Starrett High-Accuracy Combination Square Blades with the included lockbolts.

Center Heads

Center heads identify the center on pipes, rods, and shafts.

Cast Iron—Cast iron heads are durable, so they resist dents and scratches. However, they corrode more easily than zinc alloy heads.

Hardened Steel—Hardened steel heads are more durable and last longer than cast iron heads.

	Cast Iron		Hardened Steel
For Blade Lg.		Each		Each
4"	1955A17	000000	1955A21	000000
6"	1955A18	00000	1955A22	000000
12" to 48"	1955A19	00000	1955A23	000000

Replacement Square Head Lockbolts

For Head Style	For Blade Lg.		Each
Center, Square	4"	1955A81	000000
Center, Square	6"	1955A82	00000
Center	6"	1955A85	00000
Center, Square, Protractor	12" to 36"/300 mm to 600 mm	1955A83	0000

Combination Squares

Replace your try square, miter square, depth gauge, marking gauge, 90° level, ruler, and scriber with one tool. Blades labeled with numeric increments that are less than 1" are quick-reading.

Blades with Square Head with Built-In Level, Center Head, Reversible Protractor Head with Built-In Level, and Scriber


	Inch/Metric

Square head checks 90° angles.

Protractor head measures angles.

Center head identifies the center on pipes, rods, and shafts.

Etched—Etched graduation marks are wear resistant.

				Blade				Graduation		Aluminum Square Head
	Blade Lg.	Front Graduations (Numeric Graduations)	Back Graduations (Numeric Graduations)	Wd.	Thk.	Material	Color	Color	Type	Head Lg.		Each
Inch/Metric



		12"/300 mm	1 mm (10 mm), 1/32" (4/32")	1 mm (10 mm), 1/16" (1")	1"	3/32"	Steel	Silver	Black	Etched	4 1/4"	2007A8	000000

Half-Measure Adhesive-Back Vertical Rulers

Measure height while building half-scale models and prototypes—no division required. The distance between the graduations on these rulers is half the printed measurement. Just use your object's true dimensions to get a model half its size. These rulers read bottom to top or top to bottom, so you don't need to tilt your head to measure vertically. Stick them to your bench top for a permanent, hands-free measuring guide.

Extra-Flexible Plastic

Image of Product. Front orientation. ZoomedIn view. Contains Annotated. Rulers. Half-Measure Adhesive-Back Vertical Rulers.

These rulers are flexible enough to conform to curved surfaces without snapping.

	Thk.	Color	No. of Segments		Each
Inch







	Bottom-to-Top Reading Direction

	1 1/2	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	1	19425A47	00000


	3	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	1	19425A48	0000




			Top-to-Bottom Reading Direction

			1 1/2	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	1	19425A49	0000


			3	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	1	19425A51	0000

High-Accuracy Combination Squares

Use these squares in place of your try square, miter square, depth gauge, height gauge, center-point finder, and level. Blades are labeled with numeric increments that are less than 1" for quick reading.

Blades with Square Head with Built-In Level, Center Head, and Scriber


	Inch

Square head checks 90° angles.

Center head identifies the center on pipes, rods, and shafts.

Hardened Cast Iron Square Head—Hardened cast iron square heads are more durable and last longer than cast iron square heads.

Satin Blade—Satin blade appearance is corrosion resistant and reduces glare.

Etched—Etched graduation marks are wear resistant.

					Blade					Graduation			Cast Iron Square Head		Hardened Cast Iron Square Head
	Blade Lg.	Front Graduations (Numeric Graduations)	Back Graduations (Numeric Graduations)	Lg. Accuracy	Wd.	Thk.	Material	Appearance	Color	Color	Type	Head Lg.		Each		Each
Inch



		12"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.0025" to 0.0025"	1"	3/32"	Steel	Satin	Chrome, Silver	Black	Etched	4 1/2"	21115A13	0000000	21115A17	0000000

Replacement Square Head Lockbolts

		Each
Replacement Lockbolt	21115A36	00000

Blades with Square Head with Built-In Level, Center Head, Reversible Protractor Head, and Scriber


	Inch

Square head checks 90° angles.

Protractor head measures angles.

Center head identifies the center on pipes, rods, and shafts.

Hardened Cast Iron Square Head—Hardened cast iron square heads are more durable and last longer than cast iron square heads.

Satin Blade—Satin blade appearance is corrosion resistant and reduces glare.

Etched—Etched graduation marks are wear resistant.

					Blade					Graduation			Cast Iron Square Head		Hardened Cast Iron Square Head
	Blade Lg.	Front Graduations (Numeric Graduations)	Back Graduations (Numeric Graduations)	Lg. Accuracy	Wd.	Thk.	Material	Appearance	Color	Color	Type	Head Lg.		Each		Each
Inch



		12"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.0025" to 0.0025"	1"	3/32"	Steel	Satin	Chrome, Silver	Black	Etched	4 1/2"	21115A11	0000000	21115A15	0000000

Replacement Square Head Lockbolts

		Each
Replacement Lockbolt	21115A36	00000

Scratch-Resistant High-Accuracy Combination Squares

A titanium coating protects the blade against scratches and wear. Use these squares to replace your try square, miter square, depth gauge, height gauge, center-point finder, and level. Blades are labeled with numeric increments that are less than 1" for quick reading.

Blades with Square Head with Built-In Level, Center Head, Protractor Head, and Scriber


	Inch

Square head checks 90° angles.

Protractor head measures angles.

Center head identifies the center on pipes, rods, and shafts.

Etched—Etched graduation marks are wear resistant.

					Blade				Graduation		Cast Iron Square Head
	Blade Lg.	Front Graduations (Numeric Graduations)	Back Graduations (Numeric Graduations)	Lg. Accuracy	Wd.	Thk.	Material	Color	Color	Type	Head Lg.		Each
Inch



		12"	1/32" (4/32"), 1/64" (8/64")	1/8" (1"), 1/16" (1")	-0.002" to 0.002"	1"	3/32"	Titanium-Coated Steel	Gold	Black	Etched	4 1/2"	21155A36	0000000

Heavy Duty Levels

These sturdy levels last longer than typical levels, even if you use them frequently. With four solid sides that form a box shape, they stay flat on surfaces without wobbling and won’t twist or deform over time. The aluminum housing and durable plastic vial won't crack if you step on them or drop them off a ladder or tool tray.

Levels with Ruler—Align and measure surfaces without having to switch tools.

Levels with Center-Finding Ruler—Quickly locate the center of your workpiece without any math. These levels have graduation marks that start at zero in the middle of the level. Just align them so that the increments are the same on both sides of the object you’re measuring —zero marks your center.

					No. of Vials				Housing
	Lg.	Wd.	Ht.	Sensitivity	Horizontal	Vertical	45°	Vial Material	Material	Color	Graduations (Numeric Graduations)		Each
Levels with Ruler



		24"	1"	2 3/8"	0.006"/1 ft., 1 min/0.1"	1	1	1	Plastic	Aluminum	Red	1/16" (1")	4175N103	000000


		48"	1"	2 3/8"	0.006"/1 ft., 1 min/0.1"	1	1	1	Plastic	Aluminum	Red	1/16" (1")	4175N104	00000


		Levels with Center-Finding Ruler



				24"	1"	2"	0.006"/1 ft., 1 min/0.1"	1	2	—	Plastic	Aluminum	Yellow	1/16" (1"), 1/16" (1")	4175N101	00000


				48"	1"	2"	0.006"/1 ft., 1 min/0.1"	1	2	—	Plastic	Aluminum	Yellow	1/16" (1"), 1/16" (1")	4175N102	000000