Mechanic and Workshop Inspection Mirror Glass Replace damaged glass in suitable mechanic, engineering and workshop inspection mirrors with made-to-measure 2mm flat round silver mirror glass. Precision cut in the UK, these circular mirror blanks are available in 1mm diameter increments for accurate fitting into existing handles, frames and inspection tools. The front and back edges are wet finished for a clean fit. Measure the original mirror or internal holder diameter carefully and confirm that flat rear-silvered glass is suitable for the intended workshop or maintenance application.