The angled blades help keep your hand above the water and allow you to see what you're doing from the side of the tank, not from above. It's also much easier to reach plants for trimming. I also have straight ones but I prefer these. I can really stick my fingers in; Hello yes! The finger holes have a black plastic ring to protect fingers from the machined edge; You can remove them to make the finger holes even bigger. I didn't have to do this.
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