Starrett C11H-24-4R Combination Square Graduations - 24-Inch 4R

The Starrett C11H-24-4R is a professional-grade 24-inch combination square featuring 4R graduations, manufactured by L.S. Starrett — the industry standard in precision measuring tools. Designed for machinists, woodworkers, and tradespeople who demand accuracy, this combination square delivers reliable 90° and 45° angle measurements, depth gauging, and scribing in a single versatile tool.

Key Features:

• 24-inch hardened steel blade with 4R graduation pattern (graduations in 8ths and 16ths on one side; 32nds and 64ths on the other)
• Cast iron square head with precision-ground measuring faces for accurate 90° and 45° reference
• Reversible blade locks securely with a positive-locking nut for repeatable settings
• Scriber included in the head for layout and marking work
• Spirit level vial built into the square head for leveling applications
• Satin Chrome finish on blade reduces glare and improves readability
• Blade slides freely and locks firmly — no slop or play

The C11H series is Starrett's hardened-blade combination square line, offering superior wear resistance compared to standard tempered blades. The 4R graduation pattern is the most versatile option for general shop and layout work, making this square suitable for a wide range of professional applications including metalworking, carpentry, and construction layout.