Klein Tools 56251 Wire Marker Book 120/240V 3 Phase 1-48

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Had some electrical work done at the house and decided to re-check every circuit to verify which breaker controlled which rooms, etc. These wire markers are pretty standard and provide pre-printed wording for pretty much any type of room in your house plus for major appliances. The included directory allows for addition info one each circuit as necessary. Enough markers do to 2 or 3 houses. A good little package for this type of work.

Good

I like the 0 to 15 but the 11 to 15 will get limited usage. The symbols are +_ / if you want to call those symbols. A good all-in-one marker book but keep your numeric 0 to 9 books with you anyway.

I dont use these all the time, but when i need them theyre nice to have. Most of my work is on aircraft so i wish there were letters so i could match to connector letters, but numbers are better than nothing. I know they make packs with letters as well, next time im going to look for those. I dont use them for long term marking, mostly just to make sure i dont lose the wire positions while swapping parts out. So im not sure what the longevity, they do stay pretty well if the wires have oil or grease on them tho. Ive never had the wire marks smudge. They are pretty long for wire stickers, i assume this is because people are using them for house wire, the largest guage wire i usually work with is 10g so theres a lot of wrapping or flag it.