I'm sure this is a personal preference thing but (to me) the columns should be thematically similar, off the top of my head (I am not skilled at manufacturing nor construction):
1. Things that pound things into other things (hammers)
2. Things that twist things into other things (screwdrivers)
3. Things that join things (staples, rivets, etc. -- yes, I get that this covers both nails and screws)
4. Things that shape things
5. Things that split things
6. Things that cut things
7. Things that break things down
8. Things that mix things
9. Things that contain things
10. Things that move single things
11. Things that move aggregate things
12. Things that etch things
13. Things that measure the size of things
14. Things that measure the mass of things
15. Things that measure force
16. Things that measure other attributes?
I'm sure there are more.