Precision Fiber Cleaver K-21
CNC-machined precision cleaver with a built-in scrap collector — two-step cleaving, typical cleave angle ≤ 0.5°, blade life of 48,000 cleaves, for 0.25 / 0.9 mm coated fiber.
Typical work: Fusion splicing preparation; FTTH installation; Bench and splicing-van work.
Get a Quote WhatsApp UsNeutral stock in small lots, or private label made to your requirements. Prices on request — EXW factory pricing.
K-21 key features
- CNC-machined aluminum alloy body with an anodized finish — machined rather than cast, so the fixture seats the same way on every cleave
- Two-step cleaving with a typical cleave angle of ≤ 0.5° — flat end faces that go straight into the splicer
- Blade life of 48,000 cleaves: 16 rotating positions at 3 heights, worked through by rotation and height adjustment as the edge wears
- Built-in scrap collector keeps the cleaved offcuts inside the tool instead of on the bench or the van floor
- One fixture covers 0.25 mm coated and 0.9 mm buffered single fiber, single-mode and multimode alike
- Carry case included (140 x 95 x 70 mm): the cleaver is 350 g net, 500 g all-in with the case
K-21 specifications
| Operation | Two-step cleaving |
|---|---|
| Fiber type | Single fiber — single-mode and multimode |
| Cladding diameter | 125 μm |
| Coating diameter | 0.25 / 0.9 mm |
| Cleave length | 5–20 mm (0.25 mm coating); 10–20 mm (0.9 mm coating) |
| Cleave angle | ≤ 0.5° (typical) |
| Blade life | 48,000 cleaves (16 rotating positions x 3 heights) |
| Body | CNC-machined aluminum alloy, anodized finish |
| Scrap collector | Built-in fiber scrap collector |
| Dimensions | 100 x 85 x 64 mm (with scrap collector) |
| Weight | 350 g |
Compare the fiber cleavers range
Every product in this category, side by side on the figures that decide the choice. Blank cells mean the figure is not stated in our current data — ask us and we will confirm it for the model you mean.
| K-35 | K-21 | K-10 | K-90 | J20 | K-07 | |
|---|---|---|---|---|---|---|
| Fiber type | Single fiber and ribbon fiber (1–12 fibers) | Single fiber — single-mode and multimode | Single quartz fiber (ribbon fiber with exchangeable holder) | Single fiber — single-mode and multimode | Single fiber and ribbon fiber (up to 12 fibers) | Single fiber |
| Coating diameter | 0.25 / 0.9 / 3.0 mm | 0.25 / 0.9 mm | 0.25 / 0.9 / 3.0 mm | 0.25 / 0.9 mm | 0.25 / 0.9 / 2.0 / 3.0 mm | 0.25 / 0.9 mm |
| Cleave length | 9–16 mm | 5–20 mm (0.25 mm coating); 10–20 mm (0.9 mm coating) | Approx. 8–20 mm | 2–20 mm | 9–16 mm | — |
| Cleave angle | ≤ 0.5° | ≤ 0.5° (typical) | ≤ 0.5° | — | ≤ 0.5° | ≤ 0.5° |
| Blade life | 48,000+ cleaves | 48,000 cleaves | 48,000 cleaves | 6,000 cleaves | 48,000 cleaves | 36,000 cleaves |
| Dimensions | 76 x 85 x 53 mm | 100 x 85 x 64 mm (with scrap collector) | 83 x 55 x 52 mm | 124 x 20 x 40 mm | 63 x 76 x 63 mm | 75 x 60 x 50 mm (with scrap collector) |
| Weight | Approx. 220 g | 350 g | Approx. 250 g | 60 g | 350 g | 200 g |
Colors for the K-21
Where the K-21 works
Fusion splicing preparation
Part of the Fiber Cleavers range — see the specifications above for the figures that matter on this work.
FTTH installation
Part of the Fiber Cleavers range — see the specifications above for the figures that matter on this work.
Bench and splicing-van work
Part of the Fiber Cleavers range — see the specifications above for the figures that matter on this work.
K-21 components
- Carry case — 140 x 95 x 70 mm (total weight with case: 500 g)
Documents for this model
Product Catalog 2026 — this model appears in our full-range catalog (PDF), published in the Downloads center.
User manual — if you need the manual for this model now, ask via the inquiry form below or on WhatsApp and we will send the available documents with your quote.
More fiber cleavers
Questions about the K-21
How long does the blade last?
The blade is rated for 48,000 cleaves (16 rotating positions x 3 heights). When it is done, replacement blades are a standard stock item — see Fiber Cleaver Blades in this category, and tell us your cleaver model so we match the right blade.
Can the K-21 carry our own brand?
Private labeling is made to your requirements and confirmed per order — labels with your logo, part numbers and barcodes on the tools, the inner boxes and the outer cartons, ready for your warehouse. The products most often labeled are the K-35 cleaver, the KS-1 Kevlar shears and the K-870 stripper.
Can we order a small lot, unbranded?
Yes. Neutral stock is held for the core range: small lots are welcome, you can mix models in one shipment, and restock as you sell. Prices are on request — EXW factory pricing.
Ask for a quote — K-21
Tell us the quantity, and whether you want it neutral or with your brand on it.