12.75 is the drill size for an M14 tap
toggle quoted message
Show quoted text
I got one with a 8mm hole, ER-11, IIRC, with the intent to thread it M12x1 for my SL/DB machines. It's here somewhere! ;) IIRC, M14x1 needs a 13mm tap drill? I have a pair of very nice tungsten carbide 11mm tap drills for
my M12x1 stuff. Works nicely on hardened steel, which most of those things are. For my ER-25 Collet holder that I "made" from one of the longer shank collet chucks, that was a hard skin, but the tap had no problem once the tapping hole was drilled. Made it
pretty easy.?
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by:
Good judgement comes from experience. Experience comes from bad judgement.?
SEMPER GUMBY!
Improvise, Adapt, and Overcome.
Physics doesn't care about your schedule.
The only reason I know anything is because I've done it wrong enough times to START to know better.
Expect in one hand, expectorate in the other. See which one gets full first.
On Tuesday, September 5, 2023 at 10:37:02 AM CDT, Andrei <calciu1@...> wrote:
You could buy one of these for 10=15 dollars and then tap the end for 14x1mm and you are done:?
|
|
Find many great new & used options and get the best deals for ER16 Collet Block Chuck Collet Holder Spindle Motor Shaft Clamping Tool Bar at the best online prices at eBay! Free shipping for many products!
www.ebay.com
|
