They seem to have some good prices.KTS Tooling Supply
ktstooling.com
I am a good customer of KBC, though I consider their selection near the entry level of commercial machining (now that I've been sourcing better tooling) there is better tooling out there at similar pricing.KBC is outstanding and carries literally everything...but a lot of what they sell is name brand stuff so it's certainly not cheap, though their KBC branded stuff is ok too.
I've got some stuff on amazon, works...accusize and hhip and whatnot are kind of middle of the road decentish.
Tooling and cutters are everywhere.
My AliExpress Center Drills are garbage, but BangGood has some good quality cutters and mini-bandsanders that have worked very well.
KBC Tools is a distributor but has access to a variety of cutters & carbides.
Accusize in Toronto has nice indexable flycutters but I buy carbide inserts from a little supply shop in Cambridge (Culler Tools - saves me the shipping cost by using Culler’s truck).
I still have a crib full of HSS End Mills from my machining days.
Sometimes the best deals are found at Machine Shop Auctions, if you are close enough to go look at the tooling lots that put up for sale.