Need To Purchase A 9/16" -3c Collet.

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spitfire

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Hi all, I am rebuilding one of my Black Diamond Drill Grinders for which I need a new or used 9/16" (ID) - 3C collet. The function of this collet is to "hold & clamp" the smaller collets for the different size drills which one sharpens.

The one I have is worn beyond use (the draw thread is kaput) and I know they were made at one time or another. So, a new or used source would be appreciated.

Also, and seperate from this question, I have about 3 pounds of "zinc" ingots and pieces of plate stock which need a "home". The plate stock was a sacrifical anod left over from my sail boat days. Free for the snail mail postage which will probably cost you three bucks or so for a small flat rate box.

E-mails are difficult for me to access at the present time but I can read replys to this post. Also, you can call me if you care to at (636)797-4203.

Thank you, Karl J. Schmitt of Hillsboro, MO
 
There is a place that sells DB parts and collets too. Google "Black Diamond Grinder parts". Rush
Sales. Be prepared , the parts are high!
 
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If it is a standard 3c collet, Travers Tool, Little Machine Shop, Tools 4 Cheap, Shars, and Hardinge as well as most of the other suppliers all sell 3c collets. Hardinge only if you want the best and most expensive.
 
18w said:
If it is a standard 3c collet, Travers Tool, Little Machine Shop, Tools 4 Cheap, Shars, and Hardinge as well as most of the other suppliers all sell 3c collets. Hardinge only if you want the best and most expensive.
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Hi and thank you for your reply. A 9/16" - 3C collet is not a standard so to speak. All that I have found stop at 1/2" although I have found past adverts for a size 9/16".

I will call the places you suggest and just perhaps I will luck out this time.

Thank you for your reply. Karl Schmitt
 
Cactus Farmer said:
There is a place that sells DB parts and collets too. Google "Black Diamond Grinder parts". Rush
Sales. Be prepared , the parts are high!
Click to expand...
Hi and thank you for your reply. Yes, I am aware of Rush Sales and the last time I checked the price for a simple master (9/16") collet was about $150. Seemed a bit high but by todays labor costs, perhaps not so.

So, I am looking for a less expensive source, perhaps a "used one".

Thank you, Karl Schmitt
 
Karl, not being all that familiar with 3c, only 5c. I did some checking. 9/16 is larger than most offer. Hardinge has them but lists them as a step collet so hopefully that would allow you to use it with your existing collets. $97.00 though....yikes!
 
Karl, I have 3 BD grinders , I'll look to see if I have a spare 9/16ths. Do you have any extra "sub-collets" for the drills? I have a few spares and need a few to fill out my collection. I just marvel at the BD grinders, I go as small as a #52 sub-collet and thought to myself "No way this works" but i did it anyway. A #52 is tiny and the rock on my grinder has grit nearly that large. It was sharpened anyway. Awesome machine! No excuse for dull drills in my shop!
 
You could get a machinable collet and make it 9/16”. Or, make the whole collet, nice little HM project…Dave.
 
I thought my 3c lathe collets only went to 1/2" that is as big as I see listed at any rate.
 
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