Hi All!

For some time now I make O1 steel razors, but I am not satisfied with the edges.The heat treatment is performed by a specialist, but now I bought a second hand HT Oven. I can practice a lot.

I honed quite a lot of razors(and knives), so the basis for comparison. My etalon is a Geneva Cutlery & Co. razor what I restored a couple of years ego.
The main problem is the edges of the knives made ​​by me are sensitive. I can hone them, but the fine edges soon corrupted. After some use or sometimes when in contact with the hone or strop. Form some glittering light on the edge.
Is there too large particle size? Poor HT? Does it have only these possibilities in these steel? Overhoning or bad sharpening?

A few more HT questions:

I use srp recepies, comments and Spazola video for my HT process. But I have a lot of questions.

I make normalizing 3 times. The first tempering cycle I put the steel to oven on room temperature. Is this ok, or I should preheat the razor?

I have a small oven (2kW) with thermo control. When I use my oven on higher temperature(1450-1500F) the stability is between +14C and -5C from adjusted value. Is this acceptable? On the tempering temperature this fluctuation is only +/- 2C.

I use 1 l canola oil for quenching. I'm not sure that an appropriate period of time inside the steel. I tried 5-10s and 30s periods. I tried to reach 400F before the air cool to room temperature. How can I monitor this process?

When I use HT-foil should I deep into the oil with foil or not? Because of the short time. And during the tempering process?

Sorry for my poor english.
Thank you for your help!

gregg