Thread: Heated blade

Try putting it in the freezer. Haven't you heard of cryogenically treated blades?

Seriously though folks, common wisdon would say the the steel is cactus and you'll have to grind it away.

Yep, carefully grind back past the 'burned' part or re-harden and temper.

Depending on the weapon in question and it's intended target, you might get away with it soft, till you naturally get into the hard steel through grinding and honing.

Good luck, and when grinding bigger is better for keeping the heat away.

As is a big bucket of water.

The responses so far are correct. I wonder though, just how soft that area has become. It might still be useable, although it would require more frequent sharpenings. I would be tempted to hone what you have and see how durable the edge ends up being.

Greg

Hmm..I don't know what the original length of a No. 78 blade is so I'm not sure how much to grind away. I might do as Greg suggests and just use it nas it is. I wonder where I could buy another notched no. 78 blade. Any idea guys?:confused:

I think that I saw one on the display of old stock at a local tool outlet. I'll swing by there tomorrow and check. If its there, I'll get them to hold it and send you a pm.

Greg

Just a couple of points about the #78.

Firstly, I purchased a blade for mine (actually a Record #778) from LN - it is thicker and holds an edge much better. If you are looking to replace your #78 with a blade that will improve its performance, then consider one from them.

Secondly, handle these planes with care! They have got to be the most dangerous I have ever experienced - I have lost count of the number of times I have knicked a finger on the sharp edge of the protruding bevel.

%&#@!!!!

Regards from Perth

Derek

Originally Posted by derekcohen

Just a couple of points about the #78.

Firstly, I purchased a blade for mine (actually a Record #778) from LN - it is thicker and holds an edge much better. If you are looking to replace your #78 with a blade that will improve its performance, then consider one from them.

Secondly, handle these planes with care! They have got to be the most dangerous I have ever experienced - I have lost count of the number of times I have knicked a finger on the sharp edge of the protruding bevel.

%&#@!!!!

Regards from Perth

Derek

Ta for the warning Derek . I learnt my lesson feeding my finger into the table saw. Very watchful now. I reckon you'd have to be really careful with the inbuilt scriber thingy. I exposed the one on my 78 and it is razor sharp.:eek:
Cheers

Originally Posted by gregoryq

I think that I saw one on the display of old stock at a local tool outlet. I'll swing by there tomorrow and check. If its there, I'll get them to hold it and send you a pm.

Greg

Thanks mate!
Mine is a post 1920 model. It has the lever operated notched blade.
Cheers