Zwilling J.A Henckels Four Star Fillet Knives 31073 vs UltraSource Curved Semi-Flexible Boning Knives

No sources that perform objective hands-on testing have deemed the Zwilling J.A Henckels 7" Four Star Fillet Knives 31073 worthy of being included in their Boning Knife roundups, which typically isn't a good sign.

Taking a look at the UltraSource Curved Semi-Flexible Boning Knife 6", we found that it hasn't managed to perform well enough to earn a spot in any Boning Knife roundups done by sources that conduct their own, high-quality, hands-on testing. That alone makes it difficult to recommend.

As a last step, we wanted to do a head-to-head Zwilling J.A Henckels 7" Four Star Fillet Knives 31073 vs. UltraSource Curved Semi-Flexible Boning Knife 6" comparison of their review performance but, unfortunately, weren't able to find any review ratings on either product.