SPEED TIGER Micrograin Carbide Square End Mill - 2 Flute - ISE1/4 2T (5 Pieces, 1/4") - for Milling Alloy Steels, Hardened Steel, Metal & More – Mill Bits Sets for DIYers & Professionals

There bits were ordered to solve a routing cut problem I had. First, some background - I have 2 CNC Routers. One is home built from a kit and the other is from a US based manufacturer. I use Vectric's CUT2D software to generate G-Code. One of my projects had relatively small letters using a "stencil" font so there were no un-supported letter parts. I tried using a V-Bit but as it went deeper, the letter sides would become too thin and fall apart. The smallest end mill I had before buying these was 1/8" inch. My letters were so small on a 2" x 4" field that a 1/8" mill could not cut all the slender parts and I was left with gaps in the letters. I ordered these 1/16" bits in an attempt to pocket cut the letters and retain the delicate lines. They worked spectacularly! I first used my smaller CNC to test cut a block of pine wood. The bits made clean, sharp cuts with almost no after routing work needed in the corners or the top edges. For the main cut, I used my larger machine and cut the letters in 1/8" thick polystyrene plastic. The end result was perfect. Clean cuts all the way through and no melted edges. The 2 flute design allows chips to fly away via the vacuum device is use to keep the material clean. The bits cut cleanly and without any heating to melt the plastic base. So far, I have cut polystyrene, MDF, and pine wood with no clogging or poor edges. I will look to this supplier for additional bits in the future.

I use this end mill to make hard wood and bone knife handles. Seems to work very well. I would recommend this end mill, it may be worth a try for u ya our application.

I've been using the SPEED TIGER Micrograin Carbide Square End Mill (1/8", 2 Flute) for cutting (Aluminum 2024-is a high-strength aluminum alloy) on my CNC machine, and I'm thoroughly impressed. These end mills deliver clean, precise cuts with excellent surface finishes. The 2-flute design works perfectly for aluminum, effectively clearing chips without clogging, even during aggressive passes. The micrograin carbide ensures durability and longevity, handling extended use without noticeable wear. For anyone working with aluminum on a CNC, these are a fantastic choice. Highly recommend this 5-piece set for reliability and performance.

I needed to cut some cold-rolled steel on my desktop CNC. Typically steel is not a material you want to cut on a desktop CNC which tend not to be as rigid as necessary. But with some well-thought out feeds and speeds it is possible. I bought the 2 Flute - ISE1/8"2T set of end mills. And I'm very impressed. I ran the machine at 15k rpm, .5mm DOC, and 150mm feed rate. The end mill was outstanding. It didn't chatter, it cut smooth as butter and the finishing pass left a very nice finish on the edge of the cuts. You know what else, the packaging the end mills came in was very nice too. I know that isn't important but most manufactures don't even think about packaging. To give some perspective I use mostly Spektra end mills from Amana Tools, and Whiteside end mills, both for wood. These Speed Tiger end mills were my first introduction to cutting steel.

it's good that they come in a 5-pack, I'm only able to get through one part in cold rolled steel per bit. Not a lot of material removal but it definitely shows visible wear after the first run.