Precision Granite - 12x12x3A5MS Grade A 5-Face Master Square, Case #4 - PQ-63-20

Product Description

This high quality master square is a 5 face type (one large face & four edges flat), square and parallel to each other with lightening holes.

12" L x 12" H x 3" W

Accuracy Inspection Grade: 0.0001" and is rated A, which entails general quality control use.