Cubikook Manual vs. Chef'sChoice 4643 Manual: Good Builds, Varying Results

Overall Verdict

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At first glance, the Chef’sChoice 4643 and the Cubikook are both decent pull-through sharpeners. But when it’s time to sharpen a dull knife, the Cubikook CS-T01 wins by a mile.

Both devices feature a strong construction and a flat base that offers excellent stability. We prefer the Chef’sChoice’s ergonomic grip and minimalist base design, though its duo-angle working section can be a little confusing for first-time users. The Cubikook has a more straightforward slot layout; on the other hand, its small grip with a flaky label leaves much to be desired.

Performance-wise, the Cubikook is hands down the winner. It’s faster, sharpens to a keener level, and creates a smoother edge while removing less material from the blade. In fact, it’s one of the most effective among all the manual devices we’ve tested. The Chef’sChoice 4643’s subpar performance is simply no match.

Pros & Cons

Excellent stability
Affordable price
Consistent sharpness
Solid and sturdy construction

Works with 20° and 15° edges
Compatible with serrated blades
Grippy handle
Neat, ergonomic overall design

Small ceramic rods
Flaky brand label

Expensive price
Awkward slot layout

Key Specs

Stages

Scissor sharpener

Abrasives

diamond, tungsten carbide, ceramic

Diamond discs

Grit size

Coarse, Medium, Fine

Coarse, Fine

Dimensions

L8.4 x W1.9 x H2.3 inches

L9.3 x W2.0 x H2.8 inches

Suitable for

Quick, casual sharpening on a low budget

Where to Buy

Price at publication

$17.50

$51.51

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Analysis and Test Results

Performance

Overall Performance Scoring

8.0

4.3

Sharpening Time to Cut a Lemon

7.6

1.0

Sharpening Time

1 minutes 30 seconds

4 minutes

Cutting Feel

Swift and smooth

Slightly heavy

Material Retention

8.0

7.0

Medal residue on the three abrasive slots on the Cubikook knife sharpener

A bowl containing metal sharpening residue next to the Cubikook sharpener

A bowl containing metal sharpening residue next to the base of the Chef's Choice AngleSelect sharpener

Sharpening Time

1 minute

Maximum Sharpness Achieved

8.0

6.0

Sharpening Time

6 minutes

Sharpness Level

8 (Chicken breast with skin, 1 swipe)

7 (Ripe tomatoes, 1 swipe)

Edge Smoothness

8.7

5.2

Close up view in vignette of the knife blade and edge after sharpening with the Cubikook Chef' Sharpener

Close up view of the knife blade and edge after sharpening with the Chef's Choice AngleSelect

Design

Overall Design Scoring

8.5

9.3

In the Box

The Cubikook 3-stage knife sharpener next to its package box

The Chef’s Choice manual knife sharpener next to its plastic case

Dimensions

Length

8.4" (21.3 cm)

9.3" (23.6 cm)

Width

1.9" (4.8 cm)

2.0" (5.1 cm)

Height

2.3" (5.8 cm)

2.8" (7.1 cm)

Weight

7.9 oz (225 g)

6.6 oz (187 g)

Build Quality

8.8

9.0

The abrasives and part of the handle of the Cubikook CS-T01

The Chef’s Choice 4643 sharpener disassembled on a cutting board, with a lemon slice

The Chef’s Choice 4643 sharpener disassembled on a cutting board

Working Section

Levels of Sharpening

Coarse, Medium, Fine

Coarse, Fine

Abrasive

Diamond rods, tungsten carbide blades, ceramic rods

Diamond-coated disks

Mechanism

Pull through

Sharpening Angle

20 degrees

15° & 20°

Base

The underneath of the Chef's Choice sharpener

One of the feet underneath the Chef's Choice sharpener

Material

ABS plastic

Synthetic rubber

Feet Type

silicone base

Slip-proof sole (x 4)

Grip

7.5

A hand holding the Chef’s Choice manual knife sharpener

Material

ABS

Rubber

Usability

Overall Usability Scoring

9.4

8.4

Slot Arrangement

7.0

The working section on the Cubikook, with 3 slots featuring diamond rods, tungsten carbide blades, ceramic rods

The Chef’s Choice 4643 manual knife sharpener viewed from the side

Insertion

9.5

8.5

Top view of a knife being sharpened with the Cubikook, the sharpener being held in one hand

Close up view of the Chef’s Choice sharpener’s sharpening slots 1, 2, and 3

The working section on the Chef's Choice, with 3 slots featuring diamond-coated abrasive discs

Pulling Through

9.0

8.5

Cubikook Knife Sharpener Pulling Through

One of the abrasive slots on the Chef’s Choice 4643 with cutting marks on it

Stability on a Clean Surface

9.5

2 hands holding and sharpening a kitchen knife with the Cubikook sharpener on a countertop — The Cubikook has a low height and a wide base which helps minimize the risks of flipping during sharpening.

2 hands holding and sharpening a kitchen knife with the Chef's Choice sharpener

Stability on a Wet and Dirty Surface

8.0

7.0

2 hands holding and sharpening a kitchen knife with the Cubikook on a salt-sprinkled countertop

2 hands holding and sharpening a kitchen knife with the Chef's Choice on a salt-sprinkled countertop

Behind the Comparison

Anh NgoSenior Editorial Director

Anh Ngo is a writer with 9 years experience at different media outlets, covering from public news and events to product testing and analysis. At HealthyKitchen101, she works across different departments, communicating closely with its network of writers, editors, and health, tech, and search engine experts to provide a meaningful and pleasant reading experience for visitors.

Lap VoTest Lead

Lap is Head of the Research, Testing, and Review Team (RTR Team) at HealthyKitchen101.com, where he directs and supervises the testing of kitchen gadgets and appliances.

Nguyen NtkVisual Specialist

Nguyen Ntk is a graphic designer, photographer, and videographer whose philosophy centers around respecting and celebrating the beauty of reality. Through his lenses, Nguyen strives to capture the true essence of objects and events, showcasing and highlighting authentic features without distortion or exaggeration.