morse taper endmills

M

mark ct

Hot Rolled

Joined

Jul 26, 2002

Location

northfield ct usa

• Feb 17, 2005

• #1

i have a few morse taper shank endmills, like 1.250 dia with a mt 2 shank, i have always been affraid to use them tho cause i dont get how ya are supposed to keep them in the spindle, i see some on ebay from time to time also, but they all have a drive tang rather than a tapped end for a drawbar, how do ya make sure these dont come loose, i have had endmills walk outa collets before so i just cant picture a morse taper would hold an end mill without a drawbar, am i overly worried here. anyone used them before?

 

JST

Diamond

Joined

Jun 16, 2001

Location

St Louis

• Feb 17, 2005

• #2

Never used them, but wondered the same thing. Let's bump it up where it can be seen again.

 

S

s7hss

Aluminum

Joined

Dec 13, 2002

Location

Gainesville FL, USA

• Feb 17, 2005

• #3

Yep, I've used them. You're right in that the taper won't hold them. Don't run them without a drawbar, or they will walk. Cut off the tang, drill and tap to suit your drawbar.

 

M

metlmunchr

Diamond

Joined

Jul 25, 2004

Location

Asheville NC USA

• Feb 17, 2005

• #4

If the cutter has centers in it for resharpening purposes, the simplest thing to do is to put it between centers and turn the shank to a straight shank.

 

C

chevy43

Stainless

Joined

Aug 28, 2004

Location

Central CAL.

• Feb 17, 2005

• #5

I think they are made for jig borers and jig borers have morse taper collets that close tightly on the taper. Also I think they are mostly for reaming holes and not milling from the side so there is always upward pressure on them.

 

F

Frederick Harvie

Stainless

Joined

Jan 7, 2004

Location

Halifax Nova Scotia

• Feb 18, 2005

• #6

I beleive that the proper name for these is a spot facer

 

JST

Diamond

Joined

Jun 16, 2001

Location

St Louis

• Feb 18, 2005

• #7

At least one of my shop texts has a picture of a couple of them, and calls them "end mills".

Spot facers are shown and talked about elsewhere in the book. Clearly they know what those are too, and consider them different.

 

R

randyc

Stainless

Joined

Aug 18, 2003

Location

Eureka, CA, USA

• Feb 18, 2005

• #8

Spot facers - not the same as end mills in function or appearance. No side cutting capability is required, the primary function is to produce a round, flat surface (usually on a casting or forging) for fasteners. Sort of like a large diameter counterbore ...

 

J

Jerald MI.

Hot Rolled

Joined

Oct 21, 2003

Location

Clio MI.,USA

• Feb 18, 2005

• #9

I have had MT tapers with drive tangs drop out of drill press spindles before, so I certainly would not use a such a cutter in a mill.-Jerald