About this item

• Hardened stainless steel construction with satin chrome finish, for protection of caliper
• Measures outside dimension (OD), inside dimension (ID), step, and depth (when depth bar is included)
• Raised sliding surfaces to help prevent defacement and wear of scale graduations
• Modest, 14-degree face angle on vernier scale, for improving visibility and reducing the possibility of parallax errors
• Meets Federal Accuracy Specifications GGG-C-111B