The premium four inch lens with square holder for Trotec Speedy 500 machines is typically used to achieve a longer vertical cut.  And, for cutting thicker materials.  However, this comes at a price--that being slower cutting speed caused by the larger size of the laser beam.  Therefore, we find that customers using this lens will have higher laser powers such as 60 or more watts.  However, the higher laser power is not needed for some applications, such as cutting thick foam (not a very dense material).
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4" Focus Lens with holder for Trotec Speedy 500 Laser Engraving machines. Features premium grade focus lens.

Low price, good quality. Why pay excessive prices? High quality machined aluminum base. Premium grade lens. Save a bundle.
 
Features the premium grade focus lens. Great for most laser engraving work. See our other listings for the premium grade focus lens with holders.

Includes both the blue anodized lens holder with lens attached.

Fast installation. Simply remove the old lens/holder and insert this lens/holder. Nothing could be faster!