27mm Diameter, Metric Straight Line, Contact Reticle

Product Details Metric Scale: numbered every 1.0mm 26, 27 and 35mm Diameters: 0-20mm in 0.1mm increments 21mm Diameter: 0-15mm in 0.1mm increments Specifications General Type: Metric Straight Line Scale Physical & Mechanical Properties Diameter (mm): 27.00 ±0.05 Thickness (mm): 2.28 ±0.127 Line to Line Accuracy (μm): ±2 Parallelism (arcsec): <30 Centering (mm): 0.25 Line Thickness (μm): 25.00 Line Thickness Tolerance (μm): ±13 Optical Properties Angle Tolerance (arcsec): ±1 Surface Quality: 60-40 Surface Flatness (P-V): 3 - 4λ Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 240: Compliant ×