Customer Rating: 
Summary: A must for electrical work!
Comment: When I started out as an electrician's helper, I needed good quality tools. I purchased some Klein tools at the recomendation of co workers and have used them exclusively for my electrical jobs ever since.
This tool is about 9 inches long and has a very sturdy feel to it. It will take whatever abuse you can dish out. Like most Klein pliers, I have found it helpful to keep the tool clean with a light coating of wd-40 to keep the handles nice and loose as well as keep the rust down. It is also helpful in keeping the nice plastic coating on the handles from drying and cracking. The cutter on this tool is very strong, and can cut wire, as well as small electrical bolts and cutting and/or closing loops on light duty chain.(such as you might find on a hanging light fixture.)
A side cutting plier, or linesmans pliers as they are called in the trade are exremely handy for twisting and untwisting wire braids. This practice is a must for making wire pigtails, and this tool does it with ease. Even heavier 12 gauge wire is no challenge for this tool. I have even seen electricians use this tool as a tight spot hammer to drive home wire staples that are in inaccesable spots that a hammer could not swing.
Kleins might cost more than some other brands but once you use them, you never want to go back.
Customer Rating: 
Summary: Old school inferior tools
Comment: Klein tools work, well sort of. There are much better alternatives out there, Bahco, WIHA, Knipex, and the list goes on. Klein seems to have a cult like following which seems to be why they still sell. Most people that try Knipex sell their Klein junk on ebay to the highest bidding sucker.
Customer Rating:
Summary: Nice, but better ones have entered the market
Comment: Klein has long been the standard in the electrician's tool industry. These are pretty darn good pliers.HOWEVER, personally, I've switched to Bahco pliers. Unfortunately (or not, depending on how you feel about them), Bahco has been bought out by Snap-On. Still, they have retained their unique designs. Bahco's handles are MUCH more comfortable, and the tool just stays in your hand better. Everybody is making the high-leverage joint now, that's standard. But Bahco's teeth are cut better, the hardening is better, and the handle is so many miles ahead of the Kleins it's not really even a comparison.
Still, the Kleins are easy to find, and can be had relatively cheaply. For the money, they're pretty darn good, but for the best, I'd get a set of Bahcos. They may not be on your company's approved list, and that's about the only downsided to them. Klein is approved by everyone, and used by very large companies, like Qwest.
Customer Rating:
Summary: Pure bliss
Comment: I seriously would be embaressed to be caught doing electrical work with any other dikes (lineman's, your choice). It's not so much about caring what other people think, but these are absolutely the best pair of dikes you can buy. I've even had tile guys and masons look at them and tell me that Klein makes the best pair. Buy these pliers if you don't own already own a pair and plan on ever coming close to a piece of electron carrying media.
Customer Rating:
Summary: The best
Comment: Klein linemans are the best, and most everybody I know in construction uses Kleins. Klein actually makes 2 flavors, one style is the standard cutters and the other has the ASCR cutters, which are much harder and don't dull out as quickly. If you want more comfort I'd get the plastic handles, though. They are much better than the vinyl ones, and offer a bit more protection than the vinyl. The handles come in 9" and 7".
