drill rod tolerence

Hul, Closest I can find is 4" long oversize hardened dowel pins, 4" long .

5009"-.5011" pkg of 5=$10.78 McMaster 98385A732, page 3226. Would need to be annealed before machining. They have .045" oversize drill rod, but that's got to be machined. Also have some dowel pin stock in 18-8 (soft) 12" long, but they have a tolerance from .498"-.5002", I don't know if you could cherry pick, or if you have one close. (Page 3225). All I can find, my other tool dealers just have the normal stuff.

You might try to find 12.8 mm drill rod, probably on the other side of the pond. 13mm would be at ~.5105". Good luck, Dave

Reamer blanks may be a little longer. They are hardened and ground

-.000/+.001

Bob

If you need the hardening properties of drill rod, be aware that it will change dimensions upon hardening. Best you can do is machine oversize and grind to size after hardening in that case. Otherwise go the dowel pin route, they're already hardened and ground. You didn't specify part sizes or ultimate use, there's ground shafting out there that may do what you want.

Stan

========== Depending how long the required parts [looks like most are 2 inches / 50 mm] are you may want to consider buying guage pins. prices look to be in the area of 2.50-5$US click on

You don't say why - but I have used these nice people for some small lot custom.

in 60" long. Any length.

Martin

Mart> alt.machines.cnc, rec.crafts.metalworking

Hmm ... beware that when you harden it the diameter will grow somewhat. But then, you probably know that, since you are asking for the oversize bias on the tolerance, and thus are probably planning to grind it to final dimension after hardening.

Good Luck, DoN.

Thanks Martin - I'll keep the name in case that approach is neccessary.

Hul