Starrett CB24-4R Combination Square Replacement Blade 24" Satin Chrome 4R Graduation

The Starrett CB24-4R is a 24-inch replacement blade designed for use with Starrett combination squares, combination sets, and bevel protractors. Crafted from hardened steel with a satin chrome finish, this blade reduces glare and enhances readability across a wide range of lighting and work environments.

Key Features:

• 24" length — ideal for larger layout and measuring tasks in metalworking, woodworking, and general construction
• 4R graduation — includes 8ths, 16ths, quick-reading 32nds, and 64ths for versatile, high-accuracy measurement
• 1" wide x 3/32" thick — sturdy, rigid profile for dependable precision layout work
• Hardened steel construction with machine-divided, photo-engraved markings for long-lasting clarity and accuracy
• Satin chrome finish minimizes glare and improves mark legibility in variable lighting conditions
• Broad compatibility — fits any standard 4" combination square head, combination set, or bevel protractor; 12", 18", 24", and 36" blade sizes are interchangeable (excludes Starrett models 33J and 8)
• Compatible with both inch and millimeter measurement systems

The CB24-4R is a direct replacement blade sold without a head. It is compatible with Starrett combination sets such as the C11H-24-4R and is the ideal upgrade or spare for professionals in toolmaking, carpentry, machining, and fabrication. Starrett precision measuring tools are manufactured to exceed national and international accuracy standards, making this blade a reliable choice for demanding shop and job-site environments.