The last shop I worked at we spent about 40K a year with MSC...they are OK to deal with. The Accupro Em's are OK, but the geometry aint always right on them...anything 3/16 or bigger should be OK...they are cheap enough,lol..
There is one thing you can do with MSC...buy the "USA" brand, or sometimes called "Grab Bag"...you can get good Melin, or TRW cutters for way cheap...we have done this several times and always came up on the good side..