Starrett 11H-4-4R Combination Square 4-Inch 4R Grad Hardened Steel Blade

The Starrett 11H-4-4R is a compact 4-inch combination square featuring a hardened and tempered steel blade graduated in 4R (1/8, 1/4, 1/32, 1/64-inch) increments. Designed for layout, measuring, and scribing tasks, this tool is ideal for machinists, woodworkers, and craftsmen who need precision measurement in a compact form factor.

The cast iron square head features a precision-ground base that ensures accurate 90° and 45° angle measurements. A built-in spirit level allows for quick leveling checks, and the locking screw securely fixes the blade at any position along the head for versatile use.

Key Features:

• Blade Length: 4 inches with hardened and tempered steel construction for long-lasting durability
• Graduation Style: 4R — graduated in 1/8, 1/4, 1/32, and 1/64-inch increments on both faces
• Square Head: Precision-ground cast iron with 90° and 45° reference surfaces
• Spirit Level: Built-in vial for convenient leveling checks
• Locking Mechanism: Positive-locking thumbscrew to secure blade position
• Scriber Included: Head contains a removable scriber for layout work
• Satin Chrome Finish: Reduces glare and resists corrosion

The Starrett 11H series combination squares are manufactured to exacting tolerances and are trusted by professionals in tool-and-die, metalworking, and woodworking trades. The 11H-4-4R is the perfect small-format square for bench work, inspection, and detailed layout tasks.