Cleaver Blades (6)
Cleaver blades for all popular fiber cleavers. Highest quality cleaver blades at a discount..

Exceptional precision, performance speed and reliability…

Fiber Optic termination tools and cleavers in particular are a very important item for any optic cable installer. For successful low loss, low reflectance fusion splice or termination, a precision fiber cleaver is needed. 

We stock only the highest-quality cleaver blades, at half the price charged by the splicer manufacturers, and have a constantly changing stock of new in reconditioned fusion splicer fiber holders.

eFiberTools stocks single and multifiber ribbon precision cleavers, including blade/wheel type, ultrasonic, pencil types. Cleavers are important for proper end face preparation so in most instances we carry only name brand although we do carry off-brand cleavers after we've carefully tested the quality of the cleave, and the manufacturer will we start selling these products. If you are unsure which cleaver to purchase and you are encouraged to contact us. Our selection includes cleavers, fusion splicers, fiber strippers, and all in one kits that have everything you need to perform terminations.

Whether you need to precisely terminate Pretium, standard UniCam, multimode or singlemode, SC, ST, FC or LC fiber connectors, we've got a kit for you. Whether you're working in a local area network (LAN), a data center, or an office, we've got the tools you need to clean, cut, inspect, measure, strip and terminate your fiber cables.

What Is Cleaving?​​​​​​​

To get good fiber optic splices or terminations, it is extremely important to cleave the fiber properly, especially when using the pre-polished connectors with internal splices. Cleaving is the process by which an optical fiber is “cut” or precisely broken for termination or splicing. Just like cutting glass plate, fiber is cut by scoring or scratching the surface and applying stress so the glass breaks in a smooth manner along the stress lines created by the scratch. Properly done, the fiber will cleave with a clean surface perpendicular to the length of the fiber, with no protruding glass on either end (called a lip).

Cleaving Tool – Cleaver and Scribe

A cleaver is a tool that holds the fiber under low tension, scores the surface at the proper location, then applies greater tension until the fiber breaks. Good cleavers are automatic and produce consistent results, irrespective of the operator. The user need only clamp the fiber into the cleaver and operate its controls. Some cleavers are less automated, for example requiring operators to exert force manually for breaking the fiber, making them more dependent on operator technique and therefore less predictable.

An alternative cleaving method, typically used to remove excess fiber from the end of a connector before polishing, uses a simple hand tool called a scribe. The scribe has a hard, sharp tip, generally carbide or diamond, that is used to scratch the fiber manually. Then the operator pulls the fiber to break it. Since both the scribing and breaking process are under manual control, this method is less predictable than a good cleaver, but can produce adequate results for polishing. You just need to insure that the fiber breaks totally in front of the connector ferrule so it can be polished properly.

Fiber Optic Cleaving Process

Cleaving involves introducing a nick on the glass fiber, then stressing the nick, causing it to break the fiber. If you use a scribe to introduce a nick on the fiber, you must then apply tension by pulling on the fiber to break it. However, when you use a cleaver, it not only introduces a nick on the fiber, but also applies tension with a mechanical device. The cleaving process are as follows.

1. Using the ferrule as a guide, bring the scribe in at an angle almost parallel to the ferrule surface.

2. Very gently scribe (nick) the fiber near the tip of the ferrule. Make the nick so that the size of the protruding fiber before polishing is about 100 microns.

3. Do not use excessive pressure when nicking, as it will crush the fiber and produce a shattered cleave. This results in a high-loss component because it will scatter the light transmission.

4. Break the fiber with a gentle axial tug.

Why Is Cleaving Important?

Joining two fibers requires mating two fiber ends. If the fiber ends are not precisely cleaved, the ends will not mate properly. If the cleaved ends are at an angle, there will be a gap between the fibers that will cause loss in a mechanical splice or uneven fusion splicing. If there is a protrusion, or lip, on one of the fibers, the two fibers will not butt up against each other. If there are surface defects, called hackle or mist, the ends will reflect or diffuse light, causing loss.

Manufacturers of fusion splicers recognize that good cleaves are the key to low splice loss, so they equip their machines with precision cleavers. These cleavers produce cleaves that allow the machine to make virtually lossless splices every time.

Product Compare (0)

Showing 1 to 8 of 8 (1 Pages)
Inno V9 Fiber Cleaver Cleavers

Inno V9 Fiber Cleaver

The V9 from Inno is a high-precision optical fiber cleaving tool that is easy to handle. The small size and light weight..

  • Condition: New


Inno V9+ Fiber Cleaver w/ Scrap Collector Cleavers

Inno V9+ Fiber Cleaver w/ Scrap Collector

The V9+ from Inno is a high-precision optical fiber cleaving tool that is easy to handle. The small size and light weigh..

  • Condition: New


INNO V8 Precision Fiber Optic Cleaver Cleavers

INNO V8 Precision Fiber Optic Cleaver

The V8 high precision fiber cleaver from INNO Instrument is a single step cleaver for cleaving optical fibers. It is a s..

  • Condition: New


INNO V7+ High Precision Cleaver with Auto-Collector Cleavers

INNO V7+ High Precision Cleaver with Auto-Collector

V7+ High Precision Cleaver with Auto-Collector is an instrument for high precision fiber cutting. The V7+ can be install..

  • Condition: New


INNO V7 High Precision Cleaver Cleavers

INNO V7 High Precision Cleaver

V7 High Precision Cleaver is an instrument for high precision fiber cutting. V7 can be installed with a variety of holde..

  • Condition: New


Photon Kinetics FK12 Ultrasonic Angled Cleaver, 80-200µm (New) Cleavers

Photon Kinetics FK12 Ultrasonic Angled Cleaver, 80-200µm (New)

Factory new! We are an authorized Photon Kinetics reseller.The FK12 Angled Fiber Cleaver sets the standard for low ..

  • Condition: New


Jonard FC-220 Fiber Cleaver Cleavers

Jonard FC-220 Fiber Cleaver

The FC-220 is a single fiber cleaver designed to accommodate either 900µm buffered or 250µm coated fiber. The FC-220 cle..

  • Condition: New


Photon Kinetics FK11 Precision Fiber Optic Cleaver Cleavers

Photon Kinetics FK11 Precision Fiber Optic Cleaver

The FK11 cleaver is for fibers with nominal coating diameters of 250µm, and clamps fiber 16mm from cleave point.The..

  • Condition: New


Showing 1 to 8 of 8 (1 Pages)