When you're buying a set of carbide end mills, the first question is usually about diameter: a 1/4" cutter handles lighter slotting and profiling, a 3/8" cutter splits the difference, and a 1/2" cutter gives you more rigidity for steel work. The added question is how deep you need to cut, because the length of cut often varies even among cutters with the same shank size. The four 5-piece sets here are listed at prices from USD 49.99 to USD 205.20, so the choice is as much about matching the tool to your job as it is about managing the outlay.
Quick take
If you want the lowest listed price and you work mainly with 1/4" cutters, the 1/4" TiALN-coated ZIMI set at USD 49.99 is the straightforward pick. If you need a mid-size 3/8" tool with a double-ended design, the NZ set at USD 125.80 uses both ends of the cutter and an AlTiN coating. If your work calls for a 1/2" shank and a 1.377" length of cut, the two ZIMI 1/2" TiALN sets share the same diameter, cut length, and hardness, with the USD 184.68 version listed below the USD 205.20 "NEW!" version.
Listed-price comparison
| Set | Listed price | Price bar |
|---|---|---|
| 5PCS 1/4" 4 FLUTE LONG CARBIDE END MILL - TiALN COATED | USD 49.99 | |
| 5PCS 1/2 " 4 FLUTE LONG CARBIDE END MILL - TiALN COATED | USD 184.68 | |
| NEW! ! 5PCS 1/2 " 4 FLUTE LONG CARBIDE END MILL - TiALN COATED | USD 205.20 | |
| 5 Pcs 3/8" 4 Flute Double ended Carbide End Mill - AlTiN Coated | USD 125.80 |
Decision matrix
| Consideration | 1/4" TiALN set | 1/2" TiALN set | 1/2" NEW! TiALN set | 3/8" AlTiN set |
|---|---|---|---|---|
| Diameter | 1/4" | 1/2" | 1/2" | 3/8" |
| Length of cut | 0.708" | 1.377" | 1.377" | 9/16" |
| End design | Square milling cutter | Square end mill | Square end mill | Double-ended square end mill |
| Coating | TiALN | TiALN | TiALN | AlTiN |
| Material | Solid carbide | Solid carbide | Solid carbide | Solid carbide |
| Set size | 5 pieces | 5 pieces | 5 pieces | 5 pieces |
Product notes
5PCS 1/4" 4 FLUTE LONG CARBIDE END MILL - TiALN COATED
The ZIMI 1/4" set is the easiest entry point by price: USD 49.99 for five solid-carbide cutters with a 0.708" length of cut and a TiALN coating. It suits shallow-groove and profile milling, with an HRC45 hardness rating for carbon steel, alloy steel, and pre-hardened steel. Choose it when you need a compact 1/4" cutter and want to keep the initial spend low. The limitation is the smaller diameter and shorter cut length: if your part calls for deeper slots or a bigger shank, the 1/4" set provides less reach.
5PCS 1/2 " 4 FLUTE LONG CARBIDE END MILL - TiALN COATED
The ZIMI 1/2" set at USD 184.68 is the middle of the two 1/2" options. It is solid carbide with an HRC45 hardness and a 1.377" length of cut, so it's aimed at alloy and hardened steel where you need more reach. Between the two 1/2" sets, this one is about USD 20.52 lower than the "NEW!" set. That makes it the lower-priced route to a 1/2" shank and the longest cut length in this comparison. The limitation is the price: at USD 184.68, it is still several times the outlay of the 1/4" set, so be sure the larger diameter is what your work requires.
NEW! ! 5PCS 1/2 " 4 FLUTE LONG CARBIDE END MILL - TiALN COATED
The "NEW!" flag in this title is the main difference from the other 1/2" ZIMI set. The listed price is USD 205.20, and the diameter, cut length, hardness, and material are the same as the USD 184.68 1/2" set. You would choose this one if you specifically want the set that carries the NEW! label. The limitation is straightforward: the higher price does not add cutting length, diameter, or coating beyond what the other 1/2" set offers. If you're weighing the two 1/2" sets, the lower-priced one is the one to pick unless the NEW! label itself matters to you.
5 Pcs 3/8" 4 Flute Double ended Carbide End Mill - AlTiN Coated
The NZ 3/8" set is priced at USD 125.80 and sits between the 1/4" and 1/2" sets in both diameter and cost. Its double-ended square end mill design gives two cutting ends per shank, and the AlTiN coating suits high-temperature applications. The length of cut is 9/16". Choose this one when a 3/8" diameter matches your work and you want the double-ended arrangement. The limitation is the shorter cutting length: 9/16" is less than the 1.377" of the 1/2" sets, so deep-slot machining is not this set's strength.
Final recommendation by use case
- For a compact, low-outlay 1/4" set: the ZIMI 1/4" TiALN set at USD 49.99 gives you five cutters and the lowest listed price in the group.
- For a middle-ground 3/8" set with a double-ended design: the NZ 3/8" AlTiN set at USD 125.80 is the only double-ended option here.
- For a 1/2" shank and the longest cut length: both ZIMI 1/2" sets list a 1.377" length of cut. The USD 184.68 set is the lower-priced of the two, while the USD 205.20 "NEW!" set carries the extra label. Pick the one that fits your price preference and your preference for the title wording.
