Best Chef’sChoice Knife Sharpener: Which Model Should You Choose?

The 15XV turns out edges that cut paper cleanly and bite through tomato and pepper skin without crushing the produce. It uses a 15-degree edge per side and runs a 3-stage process of shaping, honing, and polishing with diamond abrasives and flexible spring guides. The housing feels substantial and stays steady during a pull.

Two habits matter here. The edge disappears inside the slot, so you cannot inspect the abrasive contact the way you can on an exposed stone. And pressing down harder is the classic beginner mistake. A lighter hand makes the guided pull easier to control, and a steady speed matters more than force. The first conversion from a 20-degree edge takes more effort than later maintenance, and a badly dulled knife can need another cycle before it cuts cleanly.

One small wrinkle: a freshly sharpened large blade can leave small cuts in the plastic exit lip. It is cosmetic, but worth knowing. Cleanup is easy, since an underside access door lets you reach accumulated steel shavings without dismantling anything.

The 1520 is the more flexible of the two electric machines. You choose a 15-degree or 20-degree edge, pick the matching sharpening stage, then finish. Severely dulled kitchen knives can recover a clean tomato-slicing edge with consistent sharpening along the whole blade, which is the result we care about most.

The housing feels substantial and stays put while you pull. It also takes real storage room compared with a small manual tool, so plan on a cabinet rather than a shallow utensil drawer. This entry covers the corded AngleSelect 1520, not the rechargeable DC 1520, which is a different product.

Ordinary kitchen knives respond well to a short sharpening-and-finishing session on the 4633, and the instructions make routine use straightforward. Its hand-powered diamond abrasive plates contact both faces of the edge at once. It offers 15-degree and 20-degree options per side and works for left- or right-handed users.

Use centered back-and-forth strokes with modest pressure, and keep the blade faces off the slot walls. A very dull knife, or a change of angle, takes substantially more work than on an electric model. Some bulky pocket-knife blades cannot enter the slot adequately. Single-bevel Japanese knives and scissors are excluded, and we would not recommend it for ceramic.

Availability is the real caveat. The US brand collection has shown it sold out, so check stock before you plan around it.

Routine maintenance on the 250 is convenient and restores useful cutting performance quickly. Two powered stages sharpen the blade; a hand-operated finishing stage, used with the power off, completes the triple-bevel edge at 20 degrees per side. The small housing is easy to put away between sessions.

For touch-ups and serrations, use the manual finishing stage. Go back to powered sharpening only when finishing is not enough, because excessive powered grinding can remove serration teeth. Wipe the exterior with a damp cloth, and tap the metal dust out onto paper now and then.

It will sharpen double-bevel Asian blades, but their thinner factory edge will not be preserved. It is not recommended for ceramic and excludes single-bevel Japanese knives. A secondhand unit may arrive without instructions, so get the exact-model manual first. The warranty period differs between the product page and the brand's warranty index, so confirm the terms for the unit you buy.