27mm Diameter, Multi Scale, Contact Reticle

Product Details Scales: 20mm in 0.5mm 10mm in 0.1mm 1mm in 0.05mm 0.5″ in 0.005″ 1/8″ in 1/64″ 90°e scale in 0.5°, 80-90° in 0.1° Specifications General Type: Multi Scale Physical & Mechanical Properties Diameter (mm): 27.00 ±0.05 Thickness (mm): 2.28 ±0.127 Line to Line Accuracy (μm): ±2 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 ×