The current layout of our grid view is 5 Items and the description text is cramped. I did a mock up of 4 items per row and it gave the description more room to breathe.
In short: You need to re-design the search results view ideally to improve the user experience.
I assume you need an ideal solution to increase the cells of your company (business goal) in an easiest way for your users (users' goal)?
Then it's not about the grid. It's about UX.
Consider a user is searching for a jig blade. The search results are non-usable: the user needs to explore the three pages of the same-looking images. And the descriptions are (almost) the same, as well!
The search task requires too much cognitive efforts. The efficiency, effectiveness, and users' satisfaction is low. The usability fails.
So changing the grid isn't the ideal solution at all.
As @filip has pointed in the comment, users need a mean for easy finding an item they need. Easy comparision could be done with sortable table. Though, it isn't the only way to improve the UX. And for search results which contain the items from the different categories, it's (probably) not the best one.
My suggestion for the grid view would be to present a photo of the item (in a square box in a row of 5, with a short caption that is sufficient to distinguish it from similar items) and then show the text description when you roll over the item.
For jig blades, have them shown diagonally on the picture as then the blade is at the maximum magnification that it can be in a square box.