Gun drills for coring

[KJ Cues]

I recently came into 4 gun drills for coring.
These are .800" cutting diameter so I had one professionaly ground down to .760" at the business end. The back-end holding shank is 1.25"x3".
Their drilling length is 13.5".
I'll keep the one that's now ground and sell the other 3 that are still at stock size.
$65.ea. + s/h.

My tool grinder will grind one for you to the size of mine for an additional $40 or you can have one ground to your specs by your tool grinder. I only have 3 of these for sale and as the saying goes, 'once they're gone, they're gone'.

My Pp acct. is the same as my email and I may be able to ship in a flat-rate box anywhere in the USA for an additional $10. Thanx Much, KJ

 

[fiolledapool]

side air inlet or rear air inlet??

 

[KJ Cues]

These currently have rear air feed. Notice the threaded end in pic #2.
You could drill/tap the side for air if you wanted.
I'm offering these at 1/3 of what others sell them for. The only extra service that I'm offering is to have them ground down to .760" at an additional cost. As is, these are a good deal. How you want them modified is up to you.

 

[KJ Cues]

I guess you could consider this a bump but not in the normal sense; more of a notification.
The guy that does my tool grinding has done the set-up on a machine to grind down the .800" cutting diameter and I've asked him to leave the machine set-up for a few days to give the CMs here the chance to have their drill ground to their preferred diameter. He won't leave that machine set-up much longer. I've already paid the set-up charge to have mine done but if he has to break-down the set-up, I won't ask him to set it up again. He's just too busy and set-ups cost money.
The long clearance shank immediately behind the cutting head has already been reduced on all of them to a dia. of .690". The cutting head remains at .800" on the 3 I'm offering.
If you're wanting one of these drills and you'd like the cutting head dia. reduced, please let me know soon.