12"/30cm, 5-Piece Precision Combination Square.

Fully hardened steel

Satin chrome finished blade

1st Blade Graduated in 8th, 16th, 32nd and 64th

2nd Blade Graduated in cm and mm

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

Warning: Cancer and Reproductive Harm. www.p65warnings.ca.gov