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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Manufacturer Model Number Manufacturer Model Number |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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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. All have wear-resistant etched markings.


Blade | Graduation | Cast Iron Heads | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Blade Lg. | Front Grad. Marks (Increments) | Back Grad. Marks (Increments) | Accuracy | Wd. | Thick. | Material | Color | Color | Mark Style | Head Lg. | Each | |
Inch | ||||||||||||
12" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.005" | 1" | 3/32" | Steel | Silver | Black | Etched | 4 1/2" | 0000000 | 0000000 |
18" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.006" | 1" | 3/32" | Steel | Silver | Black | Etched | 4 1/2" | 0000000 | 000000 |
24" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.007" | 1" | 3/32" | Steel | Silver | Black | Etched | 4 1/2" | 0000000 | 000000 |
Replacement Lockbolt for Square, Center, and Protractor Heads | 0000000 | Each | 00000 |
![]() | ![]() Inch |
![]() Inch/Metric |
Blade | Graduation | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Blade Lg. | Front Grad. Marks (Increments) | Back Grad. Marks (Increments) | Accuracy | Wd. | Thick. | Material | Color | Color | Mark Style | Head Lg. | Each | |
Cast Iron Heads | ||||||||||||
Inch | ||||||||||||
12" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.005" | 1" | 3/32" | Steel | Silver | Black | Etched | 4 1/2" | 0000000 | 0000000 |
12" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.005" | 1" | 3/32" | Steel | Silver | Black | Etched | 4 1/2" | 0000000 | 000000 |
18" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.006" | 1" | 3/32" | Steel | Silver | Black | Etched | 4 1/2" | 0000000 | 000000 |
24" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.007" | 1" | 3/32" | Steel | Silver | Black | Etched | 4 1/2" | 0000000 | 000000 |
Inch/Metric | ||||||||||||
11 3/4"/300mm | 1/2 mm (10 mm), 32nds (4/32") | Millimeters (10 mm), 64ths (8/64") | -0.0035" to +0.005"/-0.09 mm to +0.15 mm | 1" | 3/32" | Steel | Silver | Black | Etched | 4 1/2" | 0000000 | 000000 |
23 1/2"/600mm | 1/2 mm (10 mm), 32nds (4/32") | Millimeters (10 mm), 64ths (8/64") | -0.0035" to +0.007"/-0.11 mm to +0.25 mm | 1" | 3/32" | Steel | Silver | Black | Etched | 4 1/2" | 0000000 | 000000 |
Hardened Steel Heads | ||||||||||||
Inch | ||||||||||||
12" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.005" | 1" | 3/32" | Satin-Chrome Steel | Silver | Black | Etched | 3 5/8" | 0000000 | 000000 |
12" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.005" | 1" | 3/32" | Satin-Chrome Steel | Silver | Black | Etched | 3 5/8" | 0000000 | 000000 |
18" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.006" | 1" | 3/32" | Satin-Chrome Steel | Silver | Black | Etched | 3 5/8" | 0000000 | 000000 |
18" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.006" | 1" | 3/32" | Satin-Chrome Steel | Silver | Black | Etched | 3 5/8" | 0000000 | 000000 |
24" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.007" | 1" | 3/32" | Satin-Chrome Steel | Silver | Black | Etched | 3 5/8" | 0000000 | 000000 |
24" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.007" | 1" | 3/32" | Satin-Chrome Steel | Silver | Black | Etched | 3 5/8" | 0000000 | 000000 |
Inch/Metric | ||||||||||||
11 3/4"/300mm | 1/2 mm (10 mm), 32nds (4/32") | Millimeters (10 mm), 64ths (8/64") | -0.0035" to +0.005"/-0.09 mm to +0.15 mm | 1" | 3/32" | Satin-Chrome Steel | Silver | Black | Etched | 3 5/8" | 0000000 | 000000 |
23 1/2"/600mm | 1/2 mm (10 mm), 32nds (4/32") | Millimeters (10 mm), 64ths (8/64") | -0.0035" to +0.007"/-0.11 mm to +0.25 mm | 1" | 3/32" | Satin-Chrome Steel | Silver | Black | Etched | 3 5/8" | 0000000 | 000000 |
Replacement Lockbolt for Square, Center, and Protractor Heads | 0000000 | Each | 00000 |
Starrett High-Accuracy Combination Square Heads
Attach to Starrett High-Accuracy Combination Square Blades with the included lockbolts.
Square head checks 90° angles. Center head identifies the center on pipes, rods, and shafts. Protractor head measures angles.
Hardened-steel heads are more durable and last longer than cast iron heads.



Protractor | |||||
---|---|---|---|---|---|
Component | For Blade Lgs. | Angle Measuring Range | Graduation Marks (Numeric Increments) | Each | |
Cast Iron | |||||
Square Head | 4" | __ | __ | 0000000 | 000000 |
Square Head with Built-in Level | 6" | __ | __ | 0000000 | 00000 |
Square Head with Built-in Level | 12"-48" | __ | __ | 0000000 | 00000 |
Center Head | 4" | __ | __ | 0000000 | 00000 |
Center Head | 6" | __ | __ | 0000000 | 00000 |
Center Head | 12"-48" | __ | __ | 0000000 | 00000 |
Nonreversible Protractor Head with Built-in Level | 12"-48" | 0°-180° | 1° (10°) | 0000000 | 000000 |
Reversible Protractor Head with Built-in Level | 12"-48" | 0°-180° | 1° (10°) | 0000000 | 000000 |
Hardened Steel | |||||
Square Head | 4" | __ | __ | 0000000 | 00000 |
Square Head with Built-in Level | 6" | __ | __ | 0000000 | 00000 |
Square Head with Built-in Level | 12"-48" | __ | __ | 0000000 | 000000 |
Center Head | 4" | __ | __ | 0000000 | 00000 |
Center Head | 6" | __ | __ | 0000000 | 000000 |
Center Head | 12"-48" | __ | __ | 0000000 | 00000 |
High-Accuracy Combination Square Heads



Attach to High-Accuracy Combination Square Blades with the included lockbolts.
Square head checks 90° angles. Center head identifies the center on pipes, rods, and shafts. Protractor head measures angles.
Hardened cast iron heads are more durable and last longer than cast iron heads.
Protractor | |||||
---|---|---|---|---|---|
Component | For Blade Lgs. | Angle Measuring Range | Graduation Marks (Numeric Increments) | Each | |
Cast Iron | |||||
Square Head with Built-in Level | 12"-24" | __ | __ | 00000000 | 000000 |
Center Head | 12"-24" | __ | __ | 00000000 | 00000 |
Reversible Protractor Head | 12"-24" | 0°-180° | 1° (10°) | 00000000 | 00000 |
Hardened Cast Iron | |||||
Square Head with Built-in Level | 12"-24" | __ | __ | 00000000 | 00000 |
Center Head | 12"-24" | __ | __ | 00000000 | 00000 |
Replacement Lockbolt | 00000000 | Each | 00000 |
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. All have a corrosion-resistant satin-chrome finish that reduces glare and wear-resistant etched markings.
Square head checks 90° angles. Center head identifies the center on pipes, rods, and shafts. Protractor head measures angles.
Hardened cast iron heads are more durable and last longer than cast iron heads.


Blade | Graduation | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Blade Lg. | Front Grad. Marks (Increments) | Back Grad. Marks (Increments) | Accuracy | Wd. | Thick. | Material | Color | Color | Mark Style | Head Lg. | Each | |
Cast Iron Heads | ||||||||||||
Inch | ||||||||||||
12" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0025" to +0.0025" | 1" | 3/32" | Satin-Chrome Steel | Silver | Black | Etched | 4 1/2" | 00000000 | 0000000 |
Hardened Cast Iron Heads | ||||||||||||
Inch | ||||||||||||
12" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0025" to +0.0025" | 1" | 3/32" | Satin-Chrome Steel | Silver | Black | Etched | 4 1/2" | 00000000 | 000000 |
Replacement Lockbolt | 00000000 | Each | 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. All have wear-resistant etched markings.
Square head checks 90° angles. Center head identifies the center on pipes, rods, and shafts. Protractor head measures angles.


Blade | Graduation | Cast Iron Heads | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Blade Lg. | Front Graduation Marks (Numeric Increments) | Back Graduation Marks (Numeric Increments) | Accuracy | Wd. | Thick. | Material | Color | Color | Mark Style | Head Lg. | Each | |
Inch | ||||||||||||
12" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.002" to +0.002" | 1" | 3/32" | Titanium-Coated Steel | Gold | Black | Etched | 4 1/2" | 00000000 | 0000000 |
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. All have wear-resistant etched markings.
Square head checks 90° angles.
Center head identifies the center on pipes, rods, and shafts.
Protractor head measures angles.


Blade | Graduation | Aluminum Heads | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Blade Lg. | Front Graduation Marks (Numeric Increments) | Back Graduation Marks (Numeric Increments) | Wd. | Thick. | Material | Color | Color | Mark Style | Head Lg. | Each | |
Inch/Metric | |||||||||||
12"/300mm | Millimeters (10 mm), 32nds (4/32") | Millimeters (10 mm), 16ths (1") | 1" | 3/32" | Steel | Silver | Black | Etched | 4 1/4" | 000000 | 000000 |
Stationary Disc Sanders

Use with adhesive-back discs. Sanders with two voltages are wired for the lower voltage.
Miter gauge enables angled sanding.
Table | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Disc Dia. | Wd. | Lg. | Max. No-Load Speed, rpm | No. of Speeds | Voltage | Current, A | Motor Speed, rpm | hp | Phase | Includes | Features | Each | |
On/Off Switch Control | |||||||||||||
10" | 6" | 11" | 1,725 | One | 120V AC/240V AC | 7.4/3.7 | 1,725 | 1/2 | Single | Miter Gauge | Disc Guard | 0000000 | 0000000 |
12" | 8" | 14" | 1,725 | One | 120V AC/240V AC | 12.8/6.4 | 1,725 | 1 | Single | Miter Gauge | Disc Guard | 0000000 | 00000000 |
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 | 00000000 | 000000 |