Learn something new every day.

[John Stevenson]

Derived from the abilities thread.

Even though you have been doing the same job most of your life it can always spring up the odd surprise.

Part gloat but no pics as yet, mislaid the camera card.
No not really a gloat as I bought these bits fair and square. Answered an advert for some cutting tools and amongst them were some morse taper reamers and some morse drills.

Yes I know got millions of morse drills but did anyone know they made drills to drill Morse holes ?

Well hands up because here's one guy that didn't. Often read in books about drilling a series of stepped holes then boring the taper, never read where it said :-

"Got to rack 5, bin 3 and select the correct morse taper drill with morse taper shank. "

Genuinely made as Morse drills and not a drill ground down because the lands and gullets are tapered and black original finish. Shank on this one clearly states No 3 Morse taper.

Got a No#1, No#2 and a No#3 in the job lot but the reamers started at MT#0 and went to MT#4 in roughing and finishing.

[Dennis WA]

Sir John..I'm not ashamed to admit that I've learnt something new!

thanks
Dennis

[Ian B]

I had some twist drills with about a 0.005" taper over the length of the flutes - these were the ones when used in a handheld electric drill that tried to break your wrists...

Ian

[J Tiers]

Dang, JS, I surely never heard of such a thing, but it makes a ton of sense now that I have..... saves a lot of reamer wear.

Count me as one who didn't know.

And, very good score even at a regular fair price.

[Tony]

I bet those'll come in handy.

What's even more convenient is you can just reverse them in your
tailstock and use the shank with some honing compound.

[rkepler]

I've seen them in catalogs (or did once) but the cost was extremely high. More common are the taper pin drill/reamers to make the taper pin holes in one pass. The combo tool is a lot more than the cost of some drills and the reamer to make the same pin hole, I'd bet the same is true of the Morse Taper drills.

(Anyone ever get good use from any of the other tools? I've tried to use the drill/tap tools and never got a lot of use before they broke. How about the drill/reamers? (are those draps and dreamers?))

[Evan]

They must take a lot of horsepower to turn.

[Arcane]

They must take a lot of horsepower to turn.

Probably not too bad if you drill a series of stepped holes first.

[Evan]

I suppose the clue that all the steps are gone is when it won't turn any more.

[Oldbrock]

I've been at the tools longer than you John and I have never heard of them either. New one on me, never seen them advertised either. Peter