Starrett H33-1224 Square Head for 12", 18" & 24" Combination Square Blades

The Starrett H33-1224 is a replacement square head designed to fit Starrett combination square blades in 12-inch, 18-inch, and 24-inch lengths. Built to the exacting tolerances that have made Starrett a trusted name in precision measurement, this square head allows you to restore or reconfigure an existing combination square set without replacing the entire tool.

The H33-1224 features a hardened steel body with a precision-ground 90° face and a 45° face, allowing it to function as a try square, miter square, and depth gauge in combination with a compatible blade. A built-in spirit level provides quick plumb and level reference, and the secure locking clamp firmly holds the blade at any position along its length.

Key Features:

• Replacement square head compatible with 12", 18", and 24" Starrett combination square blades
• Precision-ground 90° and 45° working faces for accurate layout and inspection
• Built-in spirit level for plumb and level checking
• Hardened and tempered steel construction for long-term durability
• Secure blade-locking clamp for reliable positioning
• Manufactured by L.S. Starrett Co. to professional-grade tolerances

Whether you need to replace a worn or damaged head or are building a custom measurement setup, the Starrett H33-1224 square head delivers the precision and reliability that machinists, carpenters, and craftsmen have relied on for generations.