Starrett C11HC-12-4R Combination Square 12-Inch 4R Graduation

The Starrett C11HC-12-4R is a professional-grade 12-inch combination square featuring 4R graduations (1/8, 1/16, 1/32, and 1/64 inch). Built to the exacting standards Starrett has maintained for over a century, this combination square delivers the accuracy and durability demanded by machinists, carpenters, and precision tradespeople.

Key Features:

• 12-inch hardened steel blade with satin chrome finish for easy readability and corrosion resistance
• 4R graduation — marked in 1/8, 1/16, 1/32, and 1/64 inch increments on both edges
• Cast iron square head with precision-ground faces for accurate 90° and 45° angle measurement
• Integrated spirit level vial in the head for checking level and plumb
• Scriber/awl included and stored in the head for layout marking
• Positive blade lock with knurled locking nut for secure blade positioning
• Blade slides smoothly through the head and locks firmly at any position

The C11HC-12-4R is part of Starrett's classic combination square line, engineered for professionals who require reliable, repeatable measurements in shop, tool room, and field applications. The hardened and tempered blade resists wear, while the precision-ground head ensures consistent square and miter reference surfaces.