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as long as they are kept clean and crinkle free You can directly view and analyze spectra from different gas tubes and other light sources with these large sheets Perfect for physics education and visual displays of light diffraction Read more Our Holographic Diffraction Gratings are highly efficient embossed Holographic Optical Elements (H
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HHIP 4400-1250 Pro Series AGD Group 2 Dial Indicator.0001" Graduation, 0-100 Reading, 0-0.25" Range 0-0.25" Range, .0001" Graduation auspowers_batchone please feel free to contactHHIP 4400 1250 Pro Series AGD Group 2 Dial Indicator. 0001" Graduation, 0 100 Reading, 0 0. 25" Range HHHIP Pro Series AGD Group 2 inch dial indicator, 0 0. 25" range, 0001 inch graduation, 0 100 readings and contact point are made of hardened stainless steel. Contact point is interchangeable points with 4 48 thread. Stem is 3 8 inch diameter. Jeweled movement. 2 inch diameter dial face. Lug back. Product Features Rack and contact point is Made of