Overview
There’s a reason America’s Test Kitchen named the Chef’sChoice Trizor XV the best knife sharpener — and the 1520 AngleSelect is its more versatile sibling. Supporting both 15° and 20° edges with 100% diamond abrasives, this is the sharpener for anyone serious about their knives.

3-Stage Sharpening System
The 1520 uses a proven three-stage process:
- Stage 1 (15°): Coarse diamond abrasives reshape the primary edge
- Stage 2 (20°): Fine diamond abrasives for 20° knives
- Stage 3 (Stropping): Patented stropping disks create a mirror-polished finish on both 15° and 20° knives
The result is a razor-sharp, arch-shaped edge that cuts cleaner and lasts longer than flat-ground edges.

AngleSelect — 15° and 20°
This is the killer feature. Most electric sharpeners force a single angle. The 1520 lets you:
- Sharpen Japanese knives (15° like Shun, Global)
- Sharpen European knives (20° like Wüsthof, Henckels)
- Even convert 20° knives to sharper 15° edges
No more buying separate sharpeners for different knife collections.
Diamond Abrasives
100% diamond-coated disks mean this sharpener handles any steel — from soft German stainless to hard Japanese carbon steel. Diamond is the hardest natural substance, cutting faster and more consistently than ceramic or stone alternatives.

Works with Serrated Knives
Most sharpeners can’t touch serrated blades. The Chef’sChoice 1520 can — the stropping stage effectively hones serrated knives without damaging the serrations. Bread knives, steak knives, sushi knives — all welcome.
Verdict
Rating: 4.6/5
At $224.99, the Chef’sChoice 1520 is an investment. But if you own quality knives, a proper sharpener pays for itself by extending blade life and performance. This is the last sharpener you’ll ever need to buy.