The Bridge City Tools Mitre Square 1.5 V2 - Adjustable Accuracy Stainless steel blade. Can be used with a marking knife Factory calibrated to 0.05° or less.
 
Aluminum “Sure Grip” handle Black/Champagne Anodized Aluminum with an Orange Trim Handle is made from aluminum while the blade will be made from stainless steel.
 
Overall Handle Length: 122mm Handle Width: 30.3mm Handle Thickness: 13mm Overall Blade Length: 228mm Blade Width: 31.1mm Blade Thickness: 1.7mm