Jackhammer bit specification???

[Alec.S]

Well, yesterday i went to the local tool hire again and ask if they wanted any jackhammer bits re-forged.
I ended up with 19 SDS bits and 6 Jackhammer/breaker bits ( whatever you want to call them! ). So, that afternoon, i got to work and 4 hours later ... i had that. ( The grid that they are laying on is 3 foot square for a size reference). I did all of this with a hand hammer, i can tell you, that was tiring!

And so, the question is, what are the steel specifications of : 1) the jackhammer bits and 2) the sds bits. I am asking this so a can harden and temper them to the correct requirements of said steel.
I gave back the stuff today for a fair ( ish ) price... Now i just need to go to the scrap yard and coal yard to spend it !

Thank You in advance
alec

P.S I have recently been forging rings in the style of Brian Brazeals' rings. One does this by creating two two sided tapers opposite each other. I have Played with designs and stuff. I make these in about 8 mins. These are not all of them, just a few. I started making these last Saturday. Here are the photos : enjoy

[Nakedanvil - Grant Sarver]

I would contact Padley & Venables and see if you can get their recommendations. Good looking job, by the way!

[ironstein]

Hey Alec, check out a thread i started a while back entitled sharpening jackhammer bits for a rental yard. Grant, the gentleman who posted before me left some great information about heat treating and sharpening the bits. Looks like you did a great job on those.

[Alec.S]

Thank You for the prompt replys.
I have finaly found the thread you were referring to... .

alec

[brianbrazealblacksmith]

That is some nice work there Alec.S, and done in a timely manner, great job!
Karen, Lyle, and I are looking forward to your arrival in April.

[Alec.S]

Thanks Brian! I too am looking forward to April...Loads!!
I tell you, some of these bits were completely mucked up! on one of them, the end of the bit had been broken at a tangent about an inch from where the end was. I reforged it thin, and i then had to cut off the metal that was at the end to make it strait and to get rid of the bad steel. There were a few more that were mucked up like this in a similar manner!
It is also very tough steel. Which reminds me... I need to get me a heavier hammer!

alec

[HWHII]

Nice job! This type of work is shaping up to good for me also.

[ThomasPowers]

No you need a powerhammer or forging press! And BEFORE you mess yourself up permanently!

[John B]

And so, the question is, what are the steel specifications of : 1) the jackhammer bits and 2) the sds bits. I am asking this so a can harden and temper them to the correct requirements of said steel.
I gave back the stuff today for a fair ( ish ) price... Now i just need to go to the scrap yard and coal yard to spend it

So you gave these back in what condition?

And how did you test them?

And who is liable if they break and cause damage?

[ED4406]

Tip: click inside this box to load the editor

[Steve Sells]

To what box do you refer ?

[Old N Rusty]

Sir Alec, do you want a sponsor? Enjoy a warmer climate in Baton Rouge Louisiana, USA . I can plead to the US gov. that I a long established buisines , am totally unable to find any US citizen do what you can do by hand! DEFECT at Artmania!

[Alec.S]

Haha!!!! Thank you very much.... But I am only a beginner and it only takes practice and the right mindset. Can't wait to meet you at artmania!!!!

alec

[Old N Rusty]

Sir Alec, DEFECT! The crown dont appreciate your talent. Dont worry about being a beginner, we ALL were once, and that means less ingrained mistakes for your instructors to fix.