Help with setting up app

I’ve been trying to set up an app that is basically a data spreadsheet and jus filtering results etc. However I’ve ended up with massive amounts of blocks. I’ve attached a spreadsheet showing what data I am trying to use.
GoogleSheets_SpeedsFeeds.csv (198.1 KB)
Basically I want 5 screens, 1st screen to have buttons for each tool type, then when the tool type is selected it goes to screen 2 which has a list of the corresponding tool types, but with an option to filter by tool diameter. Then I want to select the tool I want and it brings up information on the tool such as flute length, manufacturer etc. Finally I want the app to then choose a material and then display the cutting data for that tool on that material (which is Vc, chipload, depth of cut, width of cut). I’ve tried everything I can to use variables to get the blocks to a decent size but now it’s driving me crazy! Any help would be greatly appreciated!
I have a link to the project as it is, it’s very messy right now though! Thunkable