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It should not hurt it at all. You should see what tool steel does if it is left at 1850 for 27 hours.

If you have resharpened your drill it will drill oversized if it is not ground evenly on each lip.

KD Rules. Thanks for the chance. Joe

Using a center drill to start the hole will help with drilling holes. They are rigid and don't walk as bad as regular drills. A #3 is what I use the most, it has a 1/4 body and a 7/32 point. It works well for both 1/8 and 1/4 holes. Joe

Sorry for the delay posting this. 1090 Water-60 Rc Mineral oil-31 Rc McMaster Carr-29 Rc Parks-63 Rc 1084 Water-59 Rc Mineral oil-33 Rc McMaster Carr-41 Rc Parks-61 Rc Not what I was expecting, but it is what I measured.

just recieved the samples in the mail. Will test them as soon as possible. I need to clean off the scale and test the hardness. Hope to do it tonight. Joe

I will take one. Thanks for doing this. Joe

I am in thanks for the chance. Joe

Just signed up. Maybe I can make it up that way if I can get time. Joe

I am in. Thanks. Joe

Way too pretty to use. Great work. Joe

Put me in. Thanks for the chance. Joe

I got my stamp from Buckeye. Mine is a lot more simple though, only $60. I used my last name with the letters connected. Joe

I will take 611. Thanks. Joe

I don't know the heat treatment info on BD1, but the old blueprints at work that call for it get 4140 instead. I never have seen any BD1 but the 4140 doesn't heat treat enough for a blade. Joe

I have used the super glue for small voids. For black I scraped some pencil lead and worked it in. Joe

I have not tried it for a knife, but the parts I made for work were terrible to grind after HT. Lost more grinding wheel than I ground from the part. Great wear resistance compared to same part made from D2. Good luck. Joe

D2 will hold an edge much better than A2. I would use it if you are doing a small knife. If you do the heat treat don't let it go to room temperature before you temper it. It will not be as brittle if it goes in the oven at about 150 deg. Temper at least twice three times is better. Joe

I'm in. Thanks for the chance

I'm in. Thanks for the chance. Joe