Makers use "thinner", "texturizer", "blender" and "chunker" loosely, and the names alone won't tell you what a shear does. The numbers will. This guide shows how to read them, using models from the thinning lane.
At a glance
| Type | Typical teeth | Hair per close | Main job | Examples in the lane |
|---|---|---|---|---|
| Fine thinner | 35 to 46 | Low | Softening lines, blending fades | Jaguar White Line Satin Plus (40 or 46 teeth), Jaguar Silver Line CJ4 Plus (40 or 43) |
| All-round thinner | About 30 | Moderate | Everyday blending and light debulking | Mina Jay II (30 teeth, 20 to 30% stated), Juntetsu Zenith (20 to 25% stated) |
| Texturizer or chunker | 10 to 21 | Higher | Removing bulk, visible separation | Ichiro Taiyo (15 teeth), Ichiro 16T, Juntetsu Chomper (10, 16 or 21) |
| Cut and thin | 12 | Very high | Close to a cutter, with softer ends | Joewell JGC-12 (80% stated) |
The tooth ranges are a rule of thumb drawn from the lane, not a standard. Always check the figures on the product page.
Why tooth count alone misleads
The usual rule says more teeth take out less hair. It's a fair starting point, and plenty of models follow it. Joewell's lineup shows where it breaks and where it holds.
- The SNT-40 and the FX-PRO 40 both have 40 teeth. Joewell states a 5% cut ratio for the SNT-40 and 35% for the FX-PRO 40. Same count, seven times the hair.
- The HXG comes with 20 teeth or 17. Joewell states 15 to 20% for the 20-tooth version and 25 to 30% for the 17-tooth one, so here fewer teeth do take more.
What changes the result is the width of each tooth, the gaps between them and the shape of the groove that catches the hair. You can't see those on a spec line, which is why the cut ratio matters when a maker gives one.
No cut ratio listed? Compare the tooth count against models from the same maker, and ask us if you need a second opinion.
Tooth shapes, by the maker's name
- V-shaped teeth: the most common shape in the lane, on most Mina, Ichiro and Juntetsu thinners.
- Prism teeth: used by Jaguar on the White Line and Silver Line thinners, and listed as sharpened prism teeth on the Yasaka YS.
- Micro-serrated teeth: fine grooves that hold the hair as the blades close, as on the Jaguar Gold Line Diamond E (39 or 43 teeth).
- Wave or scoop profile: the Juntetsu Matte Black Offset Texturizing is listed with a wave or scoop tooth profile.
Shape changes how a close feels and how soft the ends look. The product page carries the maker's own description of what each shape is for.
Teeth on one blade or two
Most thinners have one toothed blade and one straight blade. A double-sided thinner has teeth on both, so every close catches hair from both sides. The Jaguar Satin (30/30) is the double-sided model in the lane, at 6.0 inches, and Jaguar describes it as a fine degree of thinning. If single-sided thinners leave lines in your blends, it's one to compare.
Does thinner length matter?
Less than cutter length, but it does. Most thinners in the lane are 6.0 inches, which suits most hands and most sections. A longer blade, such as the 6.5 inch Juntetsu Sword texturizer, covers more of a section per close and works well over a comb. Shorter thinners, like the 5.0 and 5.5 inch Jaguar Pastell Plus models, give more control around the ears and the face.
The simplest rule: pick a thinner within half an inch of your cutter, and your hand will feel at home with both.
How to choose: by job, then by hair
- Name the job. Softening and blending point to a fine or all-round thinner. Taking weight out of thick hair points to a texturizer.
- Think about the hair you cut most. Fine hair rarely needs more than an all-round thinner. Thick, coarse or curly hair often wants a texturizer as well.
- Check the cut ratio. Under about 20% is gentle; 30% and up removes weight quickly. When in doubt, go lower. You can always close twice.
- Match your cutter. Same handle style and a similar length keep the switch between shears smooth.
- Buying your second thinner? Go the other way from your first. If you own a fine blender, add a texturizer, and the other way around.
Some products let you pick the ratio inside one model. The Ichiro Master (Multiple Ratios) lists 10 to 15%, 20 to 25% or 30 to 35%. That's handy when you know the job and want one series for all of it.
What to compare between two models
- Tooth count, and whether the teeth are on one blade or both
- Cut ratio, if the maker states one (and whether it's for wet or dry hair)
- Tooth shape, in the maker's words
- Length and handle, next to your cutter
- Cutting hand: left-handed thinners live in the left-handed lane
More compare guides
- Offset, classic or crane handles compared: handles compared, with same-model pairs.
- Lefty models vs left-hand versions: every left-handed route, model by model.
- A kit or two singles? How to compare: kits, master sets and singles side by side.
Back to the thinning lane to see every model in it.