12", 4-Piece Precision Combination Square.

• Fully hardened steel
• Satin chrome finished blade
• Graduated in 8th, 16th, 32nd and 64th
• Protractor scale graduated from 0-180 in both directions
• Square/Miter head feature level vial and hardened scribe tool
• High precision engineering standards

• Blade: Straightness/Parallelism .0006"/12"; End Squareness +/- .03 deg/90 deg
• Square Head: Squareness .005"/12"; Miter: .005"/12"
• Center Head: Square to side .001"; Tolerance +/- .07 deg/90 deg
• Protractor: Graduation on dial 0-180/180-0; Tolerance<.08 deg/90 deg