Mystery Knife / Chisel

I recovered a tool from an intersection during the homeward leg of a bike ride:

Mystery chisel knife - overview
Mystery chisel knife – overview

The scabbard is a bit the worse for having been run over by traffic, but the knife is still in good shape.

The back of the blade has been well and truly mushroomed:

Mystery chisel knife - battered back
Mystery chisel knife – battered back

The blade edge doesn’t have nearly as much damage as you’d (well, I’d) expect from all the hammering on the back and sides:

Mystery chisel knife - blade edge
Mystery chisel knife – blade edge

The molded handle suggests it’s a commercial product, but it has no branding, no maker’s mark, no identification of any kind.

Google Image Search returns useless views of tail lights and rifles. Here, try it for yourself:

Mystery chisel knife
Mystery chisel knife

I have no idea what it’s used for.

Do you?

[Update: It’s a Bell System Cable-Sheath Splitting Knife, made by Klein Tools. More details in the comments … ]

  1. #1 by Keith Ward on 2019-08-10 - 09:02

    I’ll leave everything below as I was thinking this through and found it while starting to use words like trades, commercial, heavy duty. It’s apparent now why there is no longer a logo, it was bashed out of existence.

    https://www.kleintools.com/catalog/telecom-cutting/bell-system-cable-sheath-splitting-knife

    Don’t you just love a good mystery? You have to imagine that this is either a repurposed or industry specific tool and certainly not for typical food prep. Just considering you found it on the road would tell me it fell off a truck from a job site. With all the bash marks on the sides and the mushroomed top it takes a lot of abuse and is driven in and often beaten out side to side. That blunt cutting edge has got to be for something harder in order to be more durable, but I doubt something like bricks or blocks, but certainly something hard on the outside and softer beneath. Some sort of remodeling or demolition tool perhaps? Ceramic tile, floor tile, etc.

    • #2 by Ed on 2019-08-10 - 13:09

      Excellent!

      Now that I know exactly where to look, there’s a barely visible Klein logo.

      You can tell it’s a classic tool, because the Bell System vanished in the mid-80s. I suppose Verizon line workers must occasionally split cable sheaths dating back to The Good Old Days. Surely, they don’t chop their way into fiber cables!

      Well done!

  2. #3 by RCPete on 2019-08-10 - 12:09

    Arggh, laptop on the belly makes for bad typing. Postop foot is recovering, but it’s going to be a while.

    Originally:
    Other descriptions say it’s for the lead sheathing on cables.

  3. #4 by captnmike on 2019-08-10 - 13:08

    How about trimming shakes for a roof? That would account for the short length and mushrooming from getting bashed with a large hammer.

    • #5 by RCPete on 2019-08-12 - 14:20

      There are shingle hatchets, usually with a screw/locating pin and a series of holes to get the offset right. (Can’t recall if it’s for width or an exposure gage. The latter would make more sense.) Never used one, but I’ve seem them somewhere.

  4. #6 by MishaBurnett on 2019-08-10 - 13:12

    I was going to guess tile, but it looks like we’ve got a winner above.

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