posted to both amc & rcm
For our money players in AMC
How much are you using the traditional square ground lathe tool
bits? If you are, are you using M2, M2Al, 5% or 10% cobalt? Do
you hand grind, or use a surface grinder w/fixtures or
attachments, i.e. radius dressers? Also for what purposes, e.g.
special form tools, special threads such as acme or buttress,
general machining where the material damages high $ carbide such
as excessive scale or inclusions?
If you are using square ground tool bits, how much difference [if
any] can you tell between the generic import M2, the domestic M2
and the newer alloys like M2Al, and the 5/10% cobalts?
Specifically is the Armstrong M2 tool bit worth 3X to 4X [or
more] than the import M2, or is this another "Starbucks?"?
Does anyone know if the "domestic" M2/M42 tool bits are actually
made in the USA from "Mercan" steel, or are these just import
M2/M42 tool bits repacked with a "made in USA sticker" on the box
and a higher price tag?
Also, I am in the process of ordering some 3/8 and 7/16 bits for
my new shaper. I am shocked -- shocked by the jump in M2 prices
from the last time I bought [for some suppliers > 250%]. Are all
HSS tool prices rising like a rocket?
Unka' George [George McDuffee]
He that will not apply new remedies,
must expect new evils:
for Time is the greatest innovator: and
if Time, of course, alter things to the worse,
and wisdom and counsel shall not alter them to the better,
what shall be the end?
Francis Bacon (1561-1626), English philosopher, essayist, statesman.
Essays, "Of Innovations" (1597-1625).
14 years ago