650993 TRY SQUARE PRECISION WITH BASE, 2ND-GRADE(+_0.12) 1000X550MM

Recommended for use where extreme accuracy is required. Base and blades are hardened, ground and lapped to insure that the square has a straight, parallel setup. 1st and 2nd grades are available according to their tolerance. Non graduated types are most commonly used but graduated types are also available upon request. 2nd Grade.