► Starrett | Squares & Combination Sets

Accurate Measuring Tools for Layout, Alignment & Precision Setup Precision layout begins with reliable reference tools that hold tolerance, track straight & withstand daily workshop conditions. Starrett squares & combination sets give machinists, fabricators, carpenters & metalworkers the alignment accuracy needed for marking, measuring, machine setup & part inspection. Machinists...

Accurate Measuring Tools for Layout, Alignment & Precision Setup

Precision layout begins with reliable reference tools that hold tolerance, track straight & withstand daily workshop conditions. Starrett squares & combination sets give machinists, fabricators, carpenters & metalworkers the alignment accuracy needed for marking, measuring, machine setup & part inspection. Machinists truing plate edges often position components beside Angle Grinders before selecting a Starrett square that confirms clean 90° geometry.

Fabricators assembling frames or brackets typically prep stock across Saws | Hand & Power before choosing combination sets that verify miters, bevels & straight-line alignment. Automotive rebuilders checking component symmetry frequently place hardware in Tyre Repair & Changing Tools trays before relying on a Starrett square for accurate positioning.

Construction teams performing door, frame or bracket installations rest materials near Concrete Vibrators before choosing squares that stay true under rough site handling. Woodworkers or cabinet builders marking joinery lines often stage pieces across Deck Screws zones before using combination sets designed for multi-angle versatility. Maintenance crews confirming machine bed alignment usually keep components on Pliers Sets before selecting a square for accurate setup.

Starrett’s edge accuracy, hardened blades & stable heads give trades dependable measurement on every pass.

What’s in This Collection:

► Starrett Combination Squares
‣ Suited for layout marking, angle transfers, squareness checks & machine setup.

► Starrett Adjustable Squares
‣ Designed for varied measuring tasks requiring precise blade positioning.

► Starrett Double-Square Sets
‣ Intended for tight-access marking & high-accuracy layout work.

► Starrett Center-Head Attachments
‣ Made for locating centerlines on round stock & cylindrical parts.

► Starrett Protractor Heads
 ‣ Ideal for angle measurement, bevel setting & multi-position layout.

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  • Starrett - Combination Square Cast Iron Heads 6in 16r Grad | 11hc-6-16r
    Starrett - Combination Square Cast Iron Heads 6" 16R Graduation | 11HC-6-16R
    Starrett – Combination Square Cast Iron Head 6in 16R Grad | 11HC-6-16R The Starrett Combination Square delivers precise measurement and layout performance for workshop and site applications. With a durable cast iron head and 16R graduations, this 6in square ensures reliable accuracy for professional...
    $455.22
    $455.22
  • Starrett - Combination Square Cast Iron Heads 4in 4r Grad | 11hc-4-4r
    Starrett - Combination Square Cast Iron Heads 4" 4R Graduation | 11HC-4-4R
    Starrett – Combination Square Cast Iron Heads 4in 4R Grad | 11HC-4-4R The Starrett 4" Combination Square is a compact and precise tool for small measurement and layout tasks. Featuring cast iron heads and a hardened steel blade, it offers durability and accuracy in...
    $360.50
    $360.50
  • Starrett - Combination Square Cast Iron Heads 24in. 4r Grad | 11hc-24-4r
    Starrett - Combination Square Cast Iron Heads 24". 4R Graduation | 11HC-24-4R
    Starrett – Combination Square Cast Iron Heads 24in 4R Grad | 11HC-24-4R The Starrett 24" Combination Square is built for precision layout and measurement in professional environments. With cast iron heads and a hardened steel blade, it delivers durability and consistent accuracy for a...
    $670.05
    $670.05
  • Starrett - Combination Square Cast Iron Heads 24in 16r Grad | 11hc-24-16r
    Starrett - Combination Square Cast Iron Heads 24" 16R Graduation | 11HC-24-16R
    Starrett – Combination Square Cast Iron Heads 24in 16R Grad | 11HC-24-16R The Starrett 24" Combination Square delivers extended reach and high precision for demanding measurement tasks. Featuring 16R graduations and rugged cast iron heads, it ensures accurate and consistent results for professional use....
    $717.37
    $717.37
  • Starrett - Combination Square Cast Iron Heads 18in. 4r Grad | 11hc-18-4r
    Starrett - Combination Square Cast Iron Heads 18". 4R Graduation | 11HC-18-4R
    Starrett – Combination Square Cast Iron Heads 18in 4R Grad | 11HC-18-4R The Starrett 18" Combination Square is a versatile measuring and layout tool for professional workshop use. With cast iron heads and a hardened steel blade, it provides durability and reliable accuracy for...
    $604.52
    $604.52
  • Starrett - Combination Square Cast Iron Heads 18in 16r Grad | 11hc-18-16r
    Starrett - Combination Square Cast Iron Heads 18" 16R Graduation | 11HC-18-16R
    Starrett – Combination Square Cast Iron Heads 18in 16R Grad | 11HC-18-16R The Starrett 18" Combination Square offers precision measurement with fine-resolution 16R graduations for detailed work. Built with cast iron heads and a hardened steel blade, it ensures durability and consistent accuracy across...
    $651.91
    $651.91
  • Starrett - Combination Square Cast Iron Heads 12in 4r Grad | 11hc-12-4r
    Starrett - Combination Square Cast Iron Heads 12" 4R Graduation | 11HC-12-4R
    Starrett – Combination Square Cast Iron Heads 12in 4R Grad | 11HC-12-4R The Starrett 12" Combination Square delivers precision layout and measurement for workshop and on-site applications. Featuring cast iron heads and a hardened steel blade with 4R graduations, it provides durability and highly...
    $418.87
    $418.87
  • Starrett - Combination Square Cast Iron Heads 12in 16r Grad | 11hc-12-16r
    Starrett - Combination Square Cast Iron Heads 12" 16R Graduation | 11HC-12-16R
    Starrett – Combination Square Cast Iron Head 12in 16R Grad | 11HC-12-16R The Starrett Combination Square 12in 16R delivers precise layout and measurement for workshop and job-site applications. Featuring a durable cast iron head and fine graduations, it ensures accurate marking, squaring, and alignment....
    $517.14
    $517.14
  • Starrett - Combination Square Cast Iron Head 6in 4r Grad | 11h-6-4r
    Starrett - Combination Square Cast Iron Head 6" 4R Graduation | 11H-6-4R
    Starrett – Combination Square Cast Iron Head 6in 4R Grad | 11H-6-4R The Starrett Combination Square 6in 4R provides reliable measurement for everyday layout and inspection tasks. Built with a durable cast iron head and easy-to-read graduations, it ensures consistent accuracy on the job....
    $276.81
    $276.81
  • Starrett - Combination Square Cast Iron Head 6in 16r Grad | 11h-6-16r
    Starrett - Combination Square Cast Iron Head 6" 16R Graduation | 11H-6-16R
    Starrett – Combination Square Cast Iron Head 6in 16R Grad | 11H-6-16R The Starrett Combination Square 6in 16R delivers precise measurement for detailed layout and inspection tasks. With fine 16R graduations and a durable cast iron head, it ensures high accuracy in workshop applications....
    $316.89
    $316.89
  • Starrett - Combination Square Cast Iron Head 4in 4r Grad | 11h-4-4r
    Starrett - Combination Square Cast Iron Head 4" 4R Graduation | 11H-4-4R
    Starrett – Combination Square Cast Iron Head 4in 4R Grad | 11H-4-4R The Starrett Combination Square 4in 4R is perfect for small, precise layout and inspection work. Compact and durable, it provides reliable measurement in tight spaces and detailed applications. ► Key Features 4...
    $254.90
    $254.90
  • Starrett - Combination Square Cast Iron Head 24in 4r Grad | 11h-24-4r
    Starrett - Combination Square Cast Iron Head 24" 4R Graduation | 11H-24-4R
    Starrett – Combination Square Cast Iron Head 24in 4R Grad | 11H-24-4R The Starrett Combination Square 24in 4R provides reliable measurement for larger layout and inspection tasks. With easy-to-read 4R graduations and a durable cast iron head, it delivers consistent accuracy on the job....
    $538.98
    $538.98
  • Starrett - Combination Square Cast Iron Head 24in 16r Grad | 11h-24-16r
    Starrett - Combination Square Cast Iron Head 24" 16R Graduation | 11H-24-16R
    Starrett – Combination Square Cast Iron Head 24in 16R Grad | 11H-24-16R The Starrett Combination Square 24in 16R delivers extended measurement capability with fine precision graduations. Designed for larger layout work, it ensures accurate marking and alignment across longer surfaces. ► Key Features 24...
    $575.40
    $575.40
  • Starrett - Combination Square Cast Iron Head 18in 4r Grad | 11h-18-4r
    Starrett - Combination Square Cast Iron Head 18" 4R Graduation | 11H-18-4R
    Starrett – Combination Square Cast Iron Head 18in 4R Grad | 11H-18-4R The Starrett Combination Square 18in 4R delivers reliable layout and measurement for everyday workshop tasks. Built with a cast iron head and clear 4R graduations, it provides easy-to-read measurements for accurate marking...
    $480.69
    $480.69
  • Starrett - 11h-12-4rcombination Square Cast Iron Head 12in 16r Grad | 11h-12-16r
    Starrett - 11H-12-4RCOMBINATION Square Cast Iron Head 12" 16R Graduation | 11H-12-16R
    Starrett – Combination Square Cast Iron Head 12in 16R Grad | 11H-12-16R The Starrett Combination Square is a precision layout and measuring tool designed for accuracy in workshop and construction tasks. Featuring a cast iron head and 16R graduations, it provides reliable measurement and...
    $393.32
    $393.32
  • Starrett - Combination Square Cast Iron Head 18in 16r Grad | 11h-18-16r
    Starrett - Combination Square Cast Iron Head 18" 16R Graduation | 11H-18-16R
    Starrett – Combination Square Cast Iron Head 18in 16R Grad | 11H-18-16R The Starrett Combination Square 18in 16R delivers precise layout and measurement for workshop and site applications. Featuring a durable cast iron head and fine 16R graduations, it ensures accurate marking, squaring, and...
    $517.14
    $517.14
  • Starrett - Combination Square Cast Iron Head 12in 4r Grad | 11h-12-4r
    Starrett - Combination Square Cast Iron Head 12" 4R Graduation | 11H-12-4R
    Starrett – Combination Square Cast Iron Head 12in 4R Grad | 11H-12-4R The Starrett Combination Square is a reliable tool for precise measurement and layout in workshop and site applications. Featuring a cast iron head and 4R graduations, it ensures durability and accuracy for...
    $287.71
    $287.71

True Lines, Trusted Angles

Measurement tasks fail when square heads loosen, blades warp or angles drift under use. Starrett squares & combination sets prevent those issues with hardened rules, tight locking mechanisms & precision-machined heads that stay accurate over long service cycles. Whether marking layout intersections, checking squareness, aligning fixtures or verifying machine setups, these tools keep angles true across demanding environments.

Industrial Shed supports precision-driven work with Same day dispatch, ensuring measurement tools arrive before layout or assembly phases begin. Multi-trade facilities rely on tool & equipment Care to maintain measuring accuracy through calibration guidance & proper handling practices.

Fabricators marking hole lines often reference Measuring & Leveling Tools before committing layout strokes. Machinists validating final positions frequently pair squares with Tap & Die Sets for threaded component alignment. Repair crews across industrial plants store high-accuracy tools inside Stationary Workshop Cabinets for protection during shift transitions.

► Precision squares & combination sets for machining, fabrication, carpentry & alignment work
► Hardened blades & machined heads for dependable measuring performance
► Multi-function attachments for angle transfer, centering & bevel verification
► Supported with fast dispatch, trade pricing & reliable workshop supply

If your layout, measuring or setup tasks demand trustworthy alignment, clean angles & precision you can rely on daily, equip your bench with Starrett squares & combination sets. Need help selecting blade length or head style? Reach out & the crew will guide you straight.

Frequently Asked Questions

Yes, they’re trusted across machine shops for reliable edge & angle verification.

Absolutely—Starrett designs them for cross-discipline use in metalworking & carpentry.

Precision blades resist corrosion under normal workshop conditions with basic care.

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Starrett

Starrett