How best to cut prewar tapered, laminated, plane iron without losing temper

[pgrbff]

I'm thinking about building a shooting plane with a skew blade. How best to cut the blade without it overheating?
I thought carefully score with angle grinder and snap maybe?

 

[--Tom--]

Just to check - you are cutting the edge to an angle to turn a regular blade into a skew?

You can get diamond blades for cutting metal in an angle grinder- they work well, less likely to fracture than a fibre disk and cut quite cool. That with improvised flood coolant from a hose pipe should keep it under the temper temperature.

Otherwise a linisher and regular dunks

 

[MarkAW]

Don't mix electric and water!

I would have thought slower is best for not generating heat

 

[guineafowl21]

Insert the blade into a potato.