need answer on rock chuck wrench size

[skeeterman]

I got 2 rock chucks and did not get wrenches, am away from machine , but i was going to make the wrenches, what is the opening? im guessing 7/8 . quick response if possible thanks
Steve

[DocWheeler]

Yes, yes, yes

[skeeterman]

thanks Doc will make my 7/8 wrenches today.
steve

[SteveEJ]

Woops.. He was responding to a TouchDown!;)

Just kidding!

[skeeterman]

you got me!!!, I had two 5/8 flat wrenches that i have done opened up to 7/8 so i hope its right.
thought i had the wrenches before i ordered my rock chucks , then found out i didnt.
steve

[jww922]

I use these on my lathe, don't know if they would work on the rc or not.

http://www.pennstateind.com/store/PKMWR.html

[skeeterman]

I dont see why they wouldnt work, i used a mill and opened up two 5/8 flat wrenches to 7/8 and it worked for me
steve

[jab73180]

i took some cheap wrenches i had in my toolbox and ground them thin, works great.