Hi Mr. Bill!,
I used to use 180, but now have switched to 150 Cubitrons. I like 150 better. The 150 Cubitrons are my favorite belts. I use them almost exclusively for sharpening knives. They are cool because the edge produced is toothy enough to easily stand up to deburring on the rough side of a plain leather belt without removing tooth.
Because I love toothy edges, I've tried belts down to 40 grit Zirc belts but have found anything much gnarlier than 150 is too gnarly. That said, with a really dull edge I'll grind with something like 80 grit just to speed things up but then finish with 150.
I use the 150 grit Cubitrons, not Cubitron II, because as far as I know Cubitron II's only go down to 80 grit. I have some of the Cubitron II belts and they are great belts. I only wish they had 150 grit versions of them.
The Cubitron 150 grit belts I use are these from R.S. Hughes, a great place to buy from:
https://www.rshughes.com/p/3M-Cubitron-7...111_67951/
I used to use 180, but now have switched to 150 Cubitrons. I like 150 better. The 150 Cubitrons are my favorite belts. I use them almost exclusively for sharpening knives. They are cool because the edge produced is toothy enough to easily stand up to deburring on the rough side of a plain leather belt without removing tooth.
Because I love toothy edges, I've tried belts down to 40 grit Zirc belts but have found anything much gnarlier than 150 is too gnarly. That said, with a really dull edge I'll grind with something like 80 grit just to speed things up but then finish with 150.
I use the 150 grit Cubitrons, not Cubitron II, because as far as I know Cubitron II's only go down to 80 grit. I have some of the Cubitron II belts and they are great belts. I only wish they had 150 grit versions of them.
The Cubitron 150 grit belts I use are these from R.S. Hughes, a great place to buy from:
https://www.rshughes.com/p/3M-Cubitron-7...111_67951/