The short answer
- The M4 (2018) chart runs from a 19° 4-iron to a 59° LW, ten clubs in all.
- Every M4 loft and lie matches the 2017 M2's. The only printed difference is the LW length, a quarter inch.
- The M6 (2019) prints the same lofts and lies again. Its lengths are 0.37 inches longer at the 4- to 6-iron and half an inch longer from the 7-iron to the LW.
A shared table says nothing about how the heads are built. The M4 sheet describes RIBCOR construction, and the M6 photo shows SPEED BRIDGE on the back. This article compares the printed numbers and the visible markings only.
M4 loft, lie and length
| Club | Loft | Lie | Length (in) |
|---|---|---|---|
| 4-iron | 19° | 61.5° | 38.88 |
| 5-iron | 21.5° | 62° | 38.25 |
| 6-iron | 25° | 62.5° | 37.63 |
| 7-iron | 28.5° | 63° | 37 |
| 8-iron | 33° | 63.5° | 36.5 |
| 9-iron | 38° | 64° | 36 |
| PW | 43.5° | 64.5° | 35.5 |
| AW | 49° | 64.5° | 35.5 |
| SW | 54° | 64.5° | 35.25 |
| LW | 59° | 64.5° | 35 |
The M4 pitching wedge is 43.5°, so the step to the 49° AW is 5.5°, then 5° to the SW and to the LW. The sheet lists left-handed heads from the 4-iron to the SW but not the LW. Stock shafts were KBS MAX 85 steel in stiff and regular and Fujikura Atmos Red graphite in 7-S, 6-R and 5-A. Our wedge gap planner loads this chart if you are filling in below the PW.
M4 vs. the 2017 M2
Put the two sheets side by side and the angle columns are interchangeable: 19° to 59° in loft, 61.5° to 64.5° in lie. The length column differs only at LW: the 2017 M2 lists 35.25 inches there and the M4 35. Even the long-iron lengths carry the same two decimals (38.88 and 37.63 in).
The 2016 M2 is close but not identical. Its 4- and 5-iron lies are 61° and 61.75°, and its SW and LW are 55° and 60° instead of 54° and 59°. Our M2 2016 vs. 2017 article covers that pair, and M2 vs. M2 Tour covers the 2016 Tour head, which has a different chart.
M4 vs. M6: same lofts, longer print
| Club | Loft (both) | M4 | M6 | Difference |
|---|---|---|---|---|
| 4-iron | 19° | 38.88 | 39.25 | +0.37 |
| 5-iron | 21.5° | 38.25 | 38.62 | +0.37 |
| 6-iron | 25° | 37.63 | 38 | +0.37 |
| 7-iron | 28.5° | 37 | 37.5 | +0.5 |
| 8-iron | 33° | 36.5 | 37 | +0.5 |
| 9-iron | 38° | 36 | 36.5 | +0.5 |
| PW | 43.5° | 35.5 | 36 | +0.5 |
| AW | 49° | 35.5 | 36 | +0.5 |
| SW | 54° | 35.25 | 35.75 | +0.5 |
| LW | 59° | 35 | 35.5 | +0.5 |
On paper the M6 is longer at every club, but TaylorMade's 2021 custom booklet describes a change in how iron length was measured and presented, and says an older game-improvement iron can look longer in a table while being physically close to a later one. Our M6 vs. SIM2 Max vs. Stealth article goes through that note. If the length matters, measure the clubs with one method; our length guide explains how.
SIM2 Max and Stealth
The SIM2 Max (2021) keeps the M4's lofts except at the 8-iron, which drops to 32.5°. Its printed lengths fall between the M4 and M6 from the 4-iron to the PW (37.25 inches at the 7-iron) and equal the M4's from the AW down. The Stealth (2022) is the first of these sheets to strengthen the 7-iron and pitching wedge: a 28° 7-iron and 43° pitching wedge. The 7-iron loft study puts the 28.5° figure in a wider context.
Telling the heads apart
The back of the head is where these sets differ. In TaylorMade's product images:
- M4 (2018): RIBCOR is printed along the upper back, and the M4 badge has a red accent in a dark cavity.
- M2 (2017): the M2 badge carries a yellow-green accent low in the cavity, with the TaylorMade logo above it.
- M6 (2019): SPEED BRIDGE runs along the upper back and a red M6 badge sits toward the toe.
- M2 (2016): M2 with an orange-red underline in the middle of a dark cavity.
A listing that only says “TaylorMade M irons” needs a photo of the back of a mid iron before you pick a chart. Our identification checklist lists the photos worth asking for, and the model year finder shows every TaylorMade chart we hold.
Checking a used M4 set
- Confirm RIBCOR and the M4 badge on the head.
- Count the clubs. The sheet runs from the 4-iron to the LW; a used set may start at the 5-iron or stop at the PW.
- Read the shaft label. KBS MAX 85 steel or Fujikura Atmos Red graphite matches the men's stock list, and the sheet also lists a women's graphite shaft. Anything else was a custom order or a reshaft.
- Measure length and have loft and lie checked if they matter to you, then compare with the table above. The used-iron checklist covers condition questions.
- Compare with any other set in the iron comparison tool.
Every TaylorMade iron chart we cover is listed on the TaylorMade irons by year page.
Sources and limits
Figures come from TaylorMade's US specification sheets as transcribed into our catalog (retrieved September 27 and 28, 2026): the 2018 M4 iron sell sheet, the 2017 M2 irons sheet, the 2016 M2 irons sheet, the 2019 M6 iron sell sheet, and the 2021 and 2022 custom booklets for SIM2 Max and Stealth. Tables and comparisons on this page are generated from those records. The note on how TaylorMade printed length comes from the 2021 booklet as summarized in our earlier article; it was not re-read for this one.
The M6 lengths are its men's steel row; the M4 sheet prints a single stock length row and no separate women's lengths. Model years are the years on TaylorMade's sheets. No clubs were inspected, measured or hit for this article, and nothing here predicts distance or says which set suits a particular golfer.