Professional Precision Double Square

Super high quality tool with hardened steel blade. Head may be locked securely in any position along the blade.

Features:

• 4" 4R blade with 2.5" base
• Graduated in 8ths, 16ths, 32nds, 64ths
• Heavy duty hardened precision ground satin chrome blade
• Made to strict US accuracy standards
• Accuracy: 0.0008" per inch
• Bubble Level