McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    46 Products

    Starrett High-Accuracy Combination Square Blades

    Image of Product. Inch. Front orientation. ZoomedIn view. Contains Annotated, MultipleImages. Combination Square Blades. Starrett High-Accuracy Combination Square Blades, 4/32" Numeric Graduations.
    Image of Product. Inch/Metric. Front orientation. ZoomedIn view. Contains Annotated, MultipleImages. Combination Square Blades. Starrett High-Accuracy Combination Square Blades, 10 mm Numeric Graduations.

    Inch

    Inch/Metric

    Use these blades with Starrett High-Accuracy Combination Square Heads. They meet Fed. Spec. GGG-R-791, 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 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
    4"1/32" (4/32"), 1/64" (8/64")1/8" (1"), 1/16" (1")-0.002" to 0.004"5/8"1/16"SilverBlackEtched0000000000000
    6"1/32" (4/32"), 1/64" (8/64")1/8" (1"), 1/16" (1")-0.002" to 0.004"3/4"5/64"SilverBlackEtched000000000000
    6"1/32" (4/32"), 1/64" (8/64")1/50" (1/10"), 1/100" (1/10")-0.002" to 0.004"3/4"5/64"SilverBlackEtched000000000000
    12"1/32" (4/32"), 1/64" (8/64")1/8" (1"), 1/16" (1")-0.0035" to 0.005"1"3/32"SilverBlackEtched000000000000
    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"SilverBlackEtched0000000000000
    24"1/32" (4/32"), 1/64" (8/64")1/8" (1"), 1/16" (1")-0.0035" to 0.007"1"3/32"SilverBlackEtched0000000000000
    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"SilverBlackEtched0000000000000
    36"1/32" (4/32"), 1/64" (8/64")1/8" (1"), 1/16" (1")-0.0035" to 0.007"1"3/32"SilverBlackEtched0000000000000
     
    Inch/Metric
     
    Satin Chrome-Plated Steel
    11 3/4"/300 mm0.5 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 mm1"3/32"SilverBlackEtched0000000000000
    23 1/2"/600 mm0.5 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 mm1"3/32"SilverBlackEtched0000000000000
     

    High-Accuracy Combination Square Blades

    Image of Product. Front orientation. Contains Annotated, MultipleImages. Combination Square Blades. 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"SilverBlackEtched00000000000000
    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"SilverBlackEtched0000000000000
    12"1/32" (4/32"), 1/64" (8/64")1/8" (1"), 1/16" (1")-0.0025" to 0.0025"1"3/32"SilverBlackEtched0000000000000
    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"SilverBlackEtched0000000000000
    18"1/32" (4/32"), 1/64" (8/64")1/8" (1"), 1/16" (1")-0.0025" to 0.0025"1"3/32"SilverBlackEtched0000000000000
    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"SilverBlackEtched0000000000000
    24"1/32" (4/32"), 1/64" (8/64")1/8" (1"), 1/16" (1")-0.0025" to 0.0025"1"3/32"SilverBlackEtched00000000000000
    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"SilverBlackEtched00000000000000
     

    Starrett High-Accuracy Combination Square Heads

    Attach to Starrett High-Accuracy Combination Square Blades with the included lockbolts.
    Square Heads
    Image of Product. Front orientation. Combination Square Heads. Starrett High-Accuracy Combination Square Heads, Square Heads.
    Square heads check 90° angles.
    Cast Iron—Cast iron heads are durable, so they resist dents and scratches. However, they corrode more easily than zinc heads.
    Hardened Steel—Hardened steel heads are more durable and last longer than cast iron heads.
    Cast Iron
    Hardened Steel
    For Blade
    Lg.
    Features
    Each
    Each
    4"—00000000000000000000000000
    6"Built-In Level000000000000000000000000
    12" to 48"Built-In Level0000000000000000000000000
    Center Heads
    Image of Product. Front orientation. Combination Square Heads. Starrett High-Accuracy Combination Square Heads, 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 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"00000000000000000000000000
    6"0000000000000000000000000
    12" to 48"0000000000000000000000000
    Protractor Heads
    Image of Product. Front orientation. Combination Square Heads. Starrett High-Accuracy Combination Square Heads, Protractor Heads.
    Protractor heads measure angles.
    Cast Iron—Cast iron heads are durable, so they resist dents and scratches. However, they corrode more easily than zinc heads.
    Protractor
    Cast Iron
    For Blade
    Lg.
    Reversible
    Features
    Angle Measured
    Range
    Graduations (Numeric
    Increments)
    Each
    12" to 48"NoBuilt-In Level0° to 180°1° (10°)00000000000000
    12" to 48"YesBuilt-In Level0° to 180°1° (10°)0000000000000

    High-Accuracy Combination Square Heads

    Attach to High-Accuracy Combination Square Blades with the included lockbolts.
    Square Heads
    Image of Product. Front orientation. Combination Square Heads. High-Accuracy Combination Square Heads, Square Heads.
    Square heads check 90° angles.
    Zinc—Zinc 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 heads.
    Hardened Cast Iron—Hardened cast iron heads are more durable and last longer than cast iron heads.
    Zinc
    Cast Iron
    Hardened
    Cast Iron
    Replacement Square
    Head Lockbolts
    For Blade
    Lg.
    Features
    Each
    Each
    Each
    Each
    12" to 24"Built-In Level0000000000000000000000000000000000000000000000000000000
    Center Heads
    Image of Product. Front orientation. Combination Square Heads. High-Accuracy Combination Square Heads, Center Heads.
    Center heads identify the center on pipes, rods, and shafts.
    Zinc—Zinc 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 heads.
    Hardened Cast Iron—Hardened cast iron heads are more durable and last longer than cast iron heads.
    Zinc
    Cast Iron
    Hardened
    Cast Iron
    Replacement Square
    Head Lockbolts
    For Blade
    Lg.
    Each
    Each
    Each
    Each
    12" to 24"0000000000000000000000000000000000000000000000000000000
    Protractor Heads
    Image of Product. Front orientation. Combination Square Heads. High-Accuracy Combination Square Heads, Protractor Heads.
    Protractor heads measure angles.
    Zinc—Zinc 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 heads.
    Protractor
    Zinc
    Cast Iron
    Replacement Square
    Head Lockbolts
    For Blade
    Lg.
    Reversible
    Angle Measured
    Range
    Graduations (Numeric
    Increments)
    Each
    Each
    Each
    12" to 24"Yes0° to 180°1° (10°)000000000000000000000000000000000000000000
    back to top