I noticed the cutting edge on my 758's has started chipping and I speculated that perhaps the discoloration on that part of the plier might indicate a defect in the heat treatment process. Any comments?

These are relatively new - like less than 6 months. Only used for plastic cable ties (mostly) and copper stranded wire (occasionally).
I'm not hating on Channellock though - I have a large collection and they've been great overall. I think this pair has something funky going on though. See the rainbow discoloration presumably from the heat treatment?

The other side doesn't look like that at all (the "anvil" in Channellock's knife and anvil cutter design). Just an even black color (bluing?).

Here's the back side showing where the metal chipped away.

And a picture of the alignment.


These are relatively new - like less than 6 months. Only used for plastic cable ties (mostly) and copper stranded wire (occasionally).
I'm not hating on Channellock though - I have a large collection and they've been great overall. I think this pair has something funky going on though. See the rainbow discoloration presumably from the heat treatment?

The other side doesn't look like that at all (the "anvil" in Channellock's knife and anvil cutter design). Just an even black color (bluing?).

Here's the back side showing where the metal chipped away.

And a picture of the alignment.

