Starrett C11-1224 Cast Iron Center Head for 12", 18" & 24" Combination Square Blades

The Starrett C11-1224 is a replacement cast iron center head designed for use with Starrett combination squares, combination sets, and bevel protractors. Compatible with 12", 18", 24", and 36" blades (as well as 300mm and 600mm metric blades), this head gives machinists, toolmakers, and layout professionals the flexibility to pair a single precision head with multiple blade lengths.

The center head is used to quickly and accurately locate the center point of round or square stock, as well as lay out precise 45-degree angles. Its V-shaped groove seats firmly against cylindrical workpieces, making it an essential tool for shaft and bar center-finding operations.

Key Features:

• Material: Cast iron construction with a durable black wrinkle finish
• Bearing surfaces are accurately ground for precision layout work
• Reversible lock bolt allows the blade to be turned over without removing the nut, ensuring proper blade alignment
• Compatible with 12", 18", 24", and 36" blades, as well as 300mm and 600mm metric blades
• Interchangeable across Starrett combination squares, combination sets, and bevel protractors (except Starrett 33J and 8 series)
• EDP: 50074
• Made in the USA

This listing is for the center head only — blades are sold separately. When ordering a replacement blade, specify the complete catalog number and desired blade length. Note: This head is not compatible with Starrett 33J or Catalog 8 combination squares.