Right-to-Left Rulers | McMaster-Carr

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	Reading Direction Reading Direction	Show

Right to Left

	Reading Direction Reading Direction	Hide

	System of Measurement System of Measurement

Inch

Metric

Half Measure Inch

	Length Length

	Width Width

	Material Material

	Graduation Marks Graduation Marks

	Graduation Location Graduation Location

	Color Color

	Silver		White
	Black		Yellow
	Clear

	Segment Length Segment Length

	Flexibility Flexibility

Flexible

Rigid

	Number of Segments Number of Segments

	Graduation Mark Style Graduation Mark Style

Etched

Printed

	Orientation Orientation

Horizontal

	Backing Material Backing Material

Adhesive

	Numeric Increments Numeric Increments

8/64"

1 cm

10 cm

	Graduation Color Graduation Color

	Black
	Silver
	Red

	Thickness Thickness

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Certification Certification

NIST Calibration Certificate

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Hole Diameter Hole Diameter

1/4"

	Maximum Measuring (Length) Maximum Measuring (Length)

111 Products

Certified Corrosion-Resistant Stainless Steel Rulers

Inch/Metric, Right to Left

A calibration certificate traceable to NIST is included with these stainless steel rulers. They're flexible for measuring slightly curved surfaces and have wear-resistant etched markings.

Inch/Metric—Right to Left Reading Direction
Lg.	Front Graduation Marks (Numeric Increments)	Back Graduation Marks (Numeric Increments)	Wd.	Thick.	Flexibility	Color	Graduation Mark Style	Hole Dia.		Each
Stainless Steel
12"/300 mm	32nds (1"), 16ths (1/8")	Millimeters (10 mm), Millimeters	1"	1/32"	Flexible	Silver	Etched	1/4"	00000000	000000
24"/600 mm	32nds (1"), 16ths (1/8")	Millimeters (10 mm), Millimeters	1"	1/32"	Flexible	Silver	Etched	1/4"	000000000	000000
36"/900 mm	32nds (1"), 16ths (1/8")	Millimeters (10 mm), Millimeters	1"	1/32"	Flexible	Silver	Etched	1/4"	000000000	000000

Certified Lightweight Aluminum Rulers

Metric, Right to Left

Ensure accurate measurements with these certified rulers. All include a calibration certificate stating they are made in accordance to NIST specifications and tolerances. They're an economical alternative to Certified Corrosion-Resistant Stainless Steel rulers.

Metric rulers 4 meters and larger come in 2 pieces.

Metric—Right to Left Reading Direction
Lg.	Front Graduation Marks (Numeric Increments)	Wd.	Thick.	Flexibility	Color	Graduation Mark Style		Each
Aluminum
2 m	Millimeters (1 cm), Centimeters (1 cm)	1 3/8"	3/32"	Rigid	Silver	Printed	0000000	000000
4 m	Millimeters (1 cm), Centimeters (1 cm)	1 3/8"	3/32"	Rigid	Silver	Printed	0000000	000000

Easy-to-Read High-Contrast Rulers

Numbers and graduations etched in light colors are easy to see on a black background.

Aluminum rulers are lightweight and corrosion resistant.

Flexible rulers are for measuring slightly curved surfaces.

Aluminum

Inch, Right to Left

Metric, Right to Left

	Graduations
Lg.	Location	Marks (Numeric Increments)	Wd.	Thick.	Flexibility	Color	Graduation Mark Style		Each
Inch—Right to Left Reading Direction
12"	Front Top	16ths (1")	1"	3/32"	Flexible	Black	Etched	00000000	000000
12"	Front Bottom	16ths (1")	1"	3/32"	Flexible	Black	Etched	00000000	0000
24"	Front Top	16ths (1")	1"	3/32"	Flexible	Black	Etched	00000000	00000
24"	Front Bottom	16ths (1")	1"	3/32"	Flexible	Black	Etched	00000000	00000
36"	Front Top	16ths (1")	1"	3/32"	Flexible	Black	Etched	00000000	00000
36"	Front Bottom	16ths (1")	1"	3/32"	Flexible	Black	Etched	00000000	00000
48"	Front Top	16ths (1")	1"	3/32"	Flexible	Black	Etched	00000000	00000
48"	Front Bottom	16ths (1")	1"	3/32"	Flexible	Black	Etched	00000000	00000
60"	Front Top	16ths (1")	1"	3/32"	Flexible	Black	Etched	00000000	00000
60"	Front Bottom	16ths (1")	1"	3/32"	Flexible	Black	Etched	00000000	00000
72"	Front Top	16ths (1")	1"	3/32"	Flexible	Black	Etched	00000000	00000
72"	Front Bottom	16ths (1")	1"	3/32"	Flexible	Black	Etched	00000000	00000
96"	Front Top	16ths (1")	1"	3/32"	Flexible	Black	Etched	00000000	00000
96"	Front Bottom	16ths (1")	1"	3/32"	Flexible	Black	Etched	00000000	00000
144"	Front Top	16ths (1")	1"	3/32"	Flexible	Black	Etched	00000000	000000
144"	Front Bottom	16ths (1")	1"	3/32"	Flexible	Black	Etched	00000000	000000
Metric—Right to Left Reading Direction
50 cm	Front Top	Millimeters (1 cm)	1"	3/32"	Flexible	Black	Etched	00000000	00000
100 cm	Front Top	Millimeters (1 cm)	1"	3/32"	Flexible	Black	Etched	00000000	00000
150 cm	Front Top	Millimeters (1 cm)	1"	3/32"	Flexible	Black	Etched	00000000	00000
200 cm	Front Top	Millimeters (1 cm)	1"	3/32"	Flexible	Black	Etched	00000000	00000

Transparent Rulers


A	B
A	D

Keep your workpiece in view as you measure with these see-through rulers.

Style A rulers have a center-finding scale.

Style B rulers have a center-finding scale and one stainless steel edge.

Style D ruler has a center-finding scale.

Inch—Left to Right/Right to Left Reading Direction
	Lg.	Front Graduation Marks (Numeric Increments)	Wd.	Thick.	Flexibility	Color	Graduation Mark Style	Hole Dia.		Each
Plastic
A	12"	16ths (1"), 16ths (1"), 8ths (1"), 16ths, 16ths	2"	1/32"	Rigid	Clear	Printed	__	00000000	00000
A	18"	16ths (1"), 16ths (1"), 8ths (1"), 16ths, 16ths	2"	1/32"	Rigid	Clear	Printed	__	00000000	0000
B	12"	16ths (1"), 16ths (1"), 16ths (1"), 16ths	1 1/2"	1/8"	Rigid	Clear	Printed	1/4"	00000000	00000
B	18"	16ths (1"), 16ths (1"), 16ths (1"), 16ths	1 1/2"	1/8"	Rigid	Clear	Printed	1/4"	00000000	00000
Inch/Metric—Left to Right/Right to Left Reading Direction
Plastic
D	12"/30 cm	16ths (1"), Millimeters (1 cm), 8ths (1")	1"	1/32"	Rigid	Clear	Printed	__	00000000	0000

Adhesive-Back Rulers

Inch, Left to Right/Right to Left

Inch, Right to Left

Inch/Metric, Right to Left

Metric, Left to Right/Right to Left

Metric, Right to Left

Permanently mount these rulers to a machine or workbench.

Stainless steel rulers are corrosion resistant.

Flexible rulers are for mounting on curved surfaces.

Etched graduation marks are more wear resistant than printed marks.

									Segments
Lg.	Front Top First Foot Grad. Marks (Numeric Increments)	Front Top Grad. Marks (Numeric Increments)	Front Bottom First Foot Grad. Marks (Numeric Increments)	Front Bottom Grad. Marks (Numeric Increments)	Wd.	Thick.	Flexibility	Grad. Mark Style	No. of	Lg.		Each
Inch—Left to Right/Right to Left Reading Direction
Yellow Paper
105ft.	__	8ths (1")	__	8ths (1")	3/4"	0.004"	Flexible	Printed	35	3ft.	0000000	000000
Yellow Steel
25ft.	32nds (1")	16ths (1")	32nds (1")	16ths (1")	3/4"	0.008"	Flexible	Printed	1	25ft.	0000000	00000
Inch—Right to Left Reading Direction
Clear Plastic
1ft.	__	16ths (1")	__	__	1/2"	0.004"	Flexible	Printed	1	1ft.	00000000	0000
1ft.	__	16ths (1")	__	16ths (1")	1 1/4"	0.004"	Flexible	Printed	1	1ft.	00000000	0000
3ft.	__	16ths (1")	__	__	1/2"	0.004"	Flexible	Printed	1	3ft.	00000000	0000
3ft.	__	16ths (1")	__	16ths (1")	1 1/4"	0.004"	Flexible	Printed	1	3ft.	00000000	0000
6ft.	__	16ths (1")	__	__	1/2"	0.004"	Flexible	Printed	2	3ft.	00000000	00000
6ft.	__	16ths (1")	__	16ths (1")	1 1/4"	0.004"	Flexible	Printed	2	3ft.	00000000	00000
9ft.	__	16ths (1")	__	__	1/2"	0.004"	Flexible	Printed	3	3ft.	00000000	00000
9ft.	__	16ths (1")	__	16ths (1")	1 1/4"	0.004"	Flexible	Printed	3	3ft.	00000000	00000
12ft.	__	16ths (1")	__	__	1/2"	0.004"	Flexible	Printed	4	3ft.	00000000	00000
12ft.	__	16ths (1")	__	16ths (1")	1 1/4"	0.004"	Flexible	Printed	4	3ft.	00000000	00000
Silver Plastic
1ft.	__	16ths (1")	__	__	1/2"	0.004"	Flexible	Printed	1	1ft.	0000000	0000
1ft.	__	16ths (1")	__	16ths (1")	1 1/4"	0.004"	Flexible	Printed	1	1ft.	0000000	0000
1ft.	__	32nds (1")	__	__	1/2"	0.004"	Flexible	Printed	1	1ft.	0000000	0000
1 1/2ft.	__	16ths (1")	__	16ths (1")	1 1/4"	0.004"	Flexible	Printed	1	1 1/2ft.	0000000	0000
3ft.	__	16ths (1")	__	__	1/2"	0.004"	Flexible	Printed	1	3ft.	0000000	0000
3ft.	__	16ths (1")	__	16ths (1")	1 1/4"	0.004"	Flexible	Printed	1	3ft.	0000000	0000
3ft.	__	32nds (1")	__	__	1/2"	0.004"	Flexible	Printed	1	3ft.	0000000	0000
6ft.	__	16ths (1")	__	__	1/2"	0.004"	Flexible	Printed	2	3ft.	0000000	00000
6ft.	__	16ths (1")	__	16ths (1")	1 1/4"	0.004"	Flexible	Printed	2	3ft.	0000000	00000
6ft.	__	32nds (1")	__	__	1/2"	0.004"	Flexible	Printed	2	3ft.	0000000	00000
9ft.	__	16ths (1")	__	__	1/2"	0.004"	Flexible	Printed	3	3ft.	0000000	00000
9ft.	__	16ths (1")	__	16ths (1")	1 1/4"	0.004"	Flexible	Printed	3	3ft.	0000000	00000
9ft.	__	32nds (1")	__	__	1/2"	0.004"	Flexible	Printed	3	3ft.	0000000	00000
12ft.	__	16ths (1")	__	__	1/2"	0.004"	Flexible	Printed	4	3ft.	0000000	00000
12ft.	__	16ths (1")	__	16ths (1")	1 1/4"	0.004"	Flexible	Printed	4	3ft.	0000000	00000
12ft.	__	32nds (1")	__	__	1/2"	0.004"	Flexible	Printed	4	3ft.	0000000	00000
18ft.	__	16ths (1")	__	16ths (1")	1"	0.004"	Flexible	Printed	6	3ft.	0000000	00000
24ft.	__	16ths (1")	__	__	1/2"	0.004"	Flexible	Printed	8	3ft.	0000000	00000
24ft.	__	16ths (1")	__	16ths (1")	1"	0.004"	Flexible	Printed	8	3ft.	0000000	00000
30ft.	__	16ths (1")	__	__	1/2"	0.004"	Flexible	Printed	10	3ft.	0000000	00000
36ft.	__	16ths (1")	__	16ths (1")	1"	0.004"	Flexible	Printed	12	3ft.	0000000	00000
48ft.	__	16ths (1")	__	16ths (1")	1"	0.004"	Flexible	Printed	16	3ft.	0000000	000000
60ft.	__	16ths (1")	__	16ths (1")	1"	0.004"	Flexible	Printed	20	3ft.	0000000	000000
Silver Stainless Steel
12"	__	16ths (1")	__	16ths (1")	19/32"	3/64"	Rigid	Etched	1	12"	0000000	00000
20"	__	16ths (1")	__	16ths (1")	19/32"	3/64"	Rigid	Etched	1	20"	0000000	00000
28"	__	16ths (1")	__	16ths (1")	19/32"	3/64"	Rigid	Etched	1	28"	0000000	00000
40"	__	16ths (1")	__	16ths (1")	19/32"	3/64"	Rigid	Etched	1	40"	0000000	000000
White Steel
6ft.	32nds (1")	16ths (1")	32nds (1")	16ths (1")	1/2"	0.008"	Flexible	Printed	1	6ft.	0000000	00000
12ft.	32nds (1")	16ths (1")	32nds (1")	16ths (1")	1/2"	0.008"	Flexible	Printed	1	12ft.	0000000	00000
Yellow Plastic
7 1/2ft.	__	4ths (1")	__	4ths (1")	3"	0.004"	Flexible	Printed	1	7 1/2ft.	00000000	00000
15ft.	__	4ths (1")	__	4ths (1")	3"	0.004"	Flexible	Printed	2	7 1/2ft.	00000000	00000
Yellow Steel
25ft.	__	__	__	16ths (1")	3/8"	0.008"	Flexible	Printed	1	25ft.	0000000	00000
25ft.	__	8ths (1")	__	8ths (1")	3/8"	0.008"	Flexible	Printed	1	25ft.	0000000	00000
50ft.	__	__	__	16ths (1")	3/8"	0.008"	Flexible	Printed	1	50ft.	0000000	00000
50ft.	__	8ths (1")	__	8ths (1")	3/8"	0.008"	Flexible	Printed	1	50ft.	0000000	00000
Inch/Metric—Right to Left Reading Direction
White Steel
12ft./3.6 m	32nds (1")	16ths (1")	__	Millimeters (1 cm)	1/2"	0.008"	Flexible	Printed	1	12ft.	0000000	00000
Metric—Left to Right/Right to Left Reading Direction
White Paper
32 m	__	2 mm (1 cm)	__	2 mm (1 cm)	3/4"	0.004"	Flexible	Printed	32	1m	0000000	00000
Metric—Right to Left Reading Direction
Silver Stainless Steel
0.3 m	__	Millimeters (1 cm)	__	Millimeters (1 cm)	19/32"	3/64"	Rigid	Etched	1	0.3m	0000000	00000
0.5 m	__	Millimeters (1 cm)	__	Millimeters (1 cm)	19/32"	3/64"	Rigid	Etched	1	0.5m	0000000	00000
0.7 m	__	Millimeters (1 cm)	__	Millimeters (1 cm)	19/32"	3/64"	Rigid	Etched	1	0.7m	0000000	00000
1 m	__	Millimeters (1 cm)	__	Millimeters (1 cm)	19/32"	3/64"	Rigid	Etched	1	1m	0000000	000000
White Plastic
1 m	__	Millimeters (1 cm)	__	Millimeters (1 cm)	3/4"	0.004"	Flexible	Printed	1	1m	0000000	0000
1 m	__	Millimeters (1 cm)	__	Millimeters (1 cm)	1"	0.004"	Flexible	Printed	1	1m	0000000	0000
1 m	__	Millimeters (10 cm)	__	__	1/2"	0.004"	Flexible	Printed	1	1m	0000000	0000
1 m	__	Millimeters (10 mm)	__	Millimeters (10 mm)	1/2"	0.004"	Flexible	Printed	1	1m	0000000	0000
2 m	__	Millimeters (1 cm)	__	Millimeters (1 cm)	3/4"	0.004"	Flexible	Printed	2	1m	0000000	00000
2 m	__	Millimeters (1 cm)	__	Millimeters (1 cm)	1"	0.004"	Flexible	Printed	2	1m	0000000	00000
2 m	__	Millimeters (10 cm)	__	__	1/2"	0.004"	Flexible	Printed	2	1m	0000000	00000
2 m	__	Millimeters (10 mm)	__	Millimeters (10 mm)	1/2"	0.004"	Flexible	Printed	2	1m	0000000	00000
3 m	__	Millimeters (10 cm)	__	__	1/2"	0.004"	Flexible	Printed	3	1m	0000000	00000
4 m	__	Millimeters (10 cm)	__	__	1/2"	0.004"	Flexible	Printed	4	1m	0000000	00000
Yellow Steel
3 m	__	Centimeters (1 cm)	__	Millimeters (1 cm)	1/2"	0.008"	Flexible	Printed	1	3m	0000000	00000

Half-Measure Adhesive-Back Rulers

Right to Left

Use to find diameters and centers. The graduations and numeric increments on these rulers are half the actual length of the object you are measuring; a 1" graduation is actually 1/2", a 2" graduation is actually 1", and so on. All are flexible for mounting on curved surfaces.

								Segments
Lg.	Front Top Graduation Marks (Numeric Increments)	Front Bottom Graduation Marks (Numeric Increments)	Wd.	Thick.	Flexibility	Color	Graduation Mark Style	No. of	Lg., ft.		Each
Half-Measure Inch—Right to Left Reading Direction
Plastic
1 1/2 ft.	8ths (1")	8ths (1")	1"	0.004"	Flexible	Silver	Printed	1	1 1/2	00000000	00000
3 ft.	8ths (1")	8ths (1")	1"	0.004"	Flexible	Silver	Printed	1	3	00000000	0000
6 ft.	8ths (1")	8ths (1")	1"	0.004"	Flexible	Silver	Printed	2	3	00000000	00000
7 1/2 ft.	8ths (1")	8ths (1")	1"	0.004"	Flexible	Silver	Printed	2	3 3/4	00000000	00000
11 1/4 ft.	8ths (1")	8ths (1")	1"	0.004"	Flexible	Silver	Printed	3	3 3/4	00000000	00000

Long-Length Rulers

Right to Left

Create a ruler up to 192" long by adding continuous segments. Mount them on machinery and tables. All are corrosion-resistant stainless steel and have wear-resistant etched markings. They're flexible for mounting on slightly curved surfaces.

Inch/Metric—Right to Left Reading Direction
Lg. Measuring Range	Lg.	Front Graduation Marks (Numeric Increments)	Wd.	Thick.	Flexibility	Color	Graduation Mark Style		Each
Stainless Steel
0"-48"/0 cm-120 cm	48"/120 cm	32nds (1"), Millimeters (1 cm)	1 1/8"	1/32"	Flexible	Silver	Etched	00000000	000000
48"-96"/120 cm-240 cm	48"/120 cm	32nds (1"), Millimeters (1 cm)	1 1/8"	1/32"	Flexible	Silver	Etched	0000000	00000
96"-144"/240 cm-360 cm	48"/120 cm	32nds (1"), Millimeters (1 cm)	1 1/8"	1/32"	Flexible	Silver	Etched	00000000	00000
144"-192"/360 cm-480 cm	48"/120 cm	32nds (1"), Millimeters (1 cm)	1 1/8"	1/32"	Flexible	Silver	Etched	00000000	00000

Center-Finding Rulers

Inch

Inch/Metric

Zero marks the center when these rulers are positioned so the same number touches each side of an object. All are corrosion-resistant stainless steel and have wear-resistant etched markings. They're flexible for measuring slightly curved surfaces.

Inch—Left to Right/Right to Left Reading Direction
Lg.	Front Graduation Marks (Numeric Increments)	Back Graduation Marks (Numeric Increments)	Wd.	Thick.	Flexibility	Color	Graduation Mark Style	Hole Dia.		Each
Stainless Steel
12"	16ths (1"), 32nds (1")	__	1 1/4"	1/32"	Flexible	Silver	Etched	1/4"	0000000	00000
18"	16ths (1"), 32nds (1")	__	1 1/4"	1/32"	Flexible	Silver	Etched	1/4"	0000000	00000
24"	16ths (1"), 32nds (1")	__	1 1/4"	1/32"	Flexible	Silver	Etched	1/4"	0000000	00000
36"	16ths (1"), 32nds (1")	__	1 1/4"	1/32"	Flexible	Silver	Etched	1/4"	0000000	00000
48"	16ths (1"), 32nds (1")	__	1 1/4"	1/32"	Flexible	Silver	Etched	1/4"	0000000	00000
Inch/Metric—Left to Right/Right to Left Reading Direction
Stainless Steel
18"/45 cm	16ths (1"), 16ths (1")	Millimeters (1 cm), Millimeters (1 cm)	1 1/4"	1/32"	Flexible	Silver	Etched	1/4"	0000000	00000
24"/60 cm	16ths (1"), 16ths (1")	Millimeters (1 cm), Millimeters (1 cm)	1 1/4"	1/32"	Flexible	Silver	Etched	1/4"	0000000	00000
36"/90 cm	16ths (1"), 16ths (1")	Millimeters (1 cm), Millimeters (1 cm)	1 1/4"	1/32"	Flexible	Silver	Etched	1/4"	0000000	00000