Klein Tools 63050 9-1/2-Inch High-Leverage Cable Cutter

Q: Can this cut 0 gauge?

Can these cut 1/0 'soft' OFC? Yeah. With ease? Hell no, my old Blue-Point cutters that are 2" SHORTER cut with less effort and for about the same price of the Klines that are just a paperweight after only 5 cuts.

Q: Do these cut irrigation cable cleanly?

I think 18/10 is a bit over 0.25" so would be easily and cleanly cut by these loppers. I recently cut some 4/0 cable at 0.53" copper with a total diameter of 0.71" - it was a REAL challenge but left a clean cut.