


Mitutoyo 311-111 | Square Master | Series 311 | Dimensions 90 x 110 x 25 mm | Mass 1.5 kg
The Mitutoyo 311-111 Square Master is a high-precision measuring tool designed for inspecting the straightness and perpendicularity of moving elements on equipment such as machine tools, coordinate measuring machines (CMMs), form measuring machines, and semiconductor-related equipment. This device features four precision-lapped reference surfaces, ensuring exceptional accuracy. It offers straightness and perpendicularity of better than 1 µm/300 mm for each of the four reference surfaces, and better than 5 µm/300 mm for the front and back surfaces. The Square Master is delivered in a wooden box with a certificate of inspection, ensuring its quality and reliability.

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- Specifications
- Features
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Dimensions | 90 x 110 x 25 mm |
Inch-Metric | Metric |
Mass (main unit) | 1.5 kg |
Model Number | UM-110 |
Series | 311 |
Type | Square Master |
- Precision Lapped Surfaces: Four precision-lapped reference surfaces for accurate measurements.
- High Accuracy: Straightness and perpendicularity of better than 1 µm/300 mm for each of the four reference surfaces.
- Front/Back Surface Accuracy: Better than 5 µm/300 mm for the front and back surfaces.
- Quality Assurance: Delivered in a wooden box with a certificate of inspection.
- Compact Dimensions: Dimensions of 90 x 110 x 25 mm and a mass of 1.5 kg for easy handling and storage.
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