Blue Point by Snap On Tools, 3 piece 12" Combination Square Boxed Set

Description

Blue-point 12" Combination Squares feature hardened and tempered steel blades with a satin chrome finish to reduce glare and resist rust:
Heads are machined cast iron with a black wrinkle finish.
Movable heads are set for readings at 45° and 90°.
Blades are machine etched with graduations at 1/8", 1/16", 1/32" and 1/64".
Blade straightness and parallelism is 0.0006" /12".
End sureness: +/-0.03°
Head sureness: 0.0005" /12".
Miter sureness: 0.005"/12".
Heads include a level vial and a hardened steel scribe that screws into the tool body.
Tools are fitted into a single foam lined storage case.
These are old stock, but brand new.