Tommy Armour built a zero-torque mallet for big-box money, and it holds up better than you would guess from lag distance. Up close, the numbers fall apart.
What's new
The Impact No. 4 is a milled steel mallet on a zero-torque hosel, released in April 2026. Its face is milled with no insert, and the head comes in one black finish.
You get two lengths, 34 and 35 inches, and only a right-handed build. Tommy Armour leads with price. It was the cheapest of 26 putters in a 2026 zero-torque test, sitting at the value tier while most rivals ask flagship money.
How it plays
Long putts are its best work. A PuttView score of -8.3 from distance is strong for a zero-torque mallet, and it backs up an 8.4 for distance on our scale.
Owners keep coming back to feel. One said it felt as good as any other zero-torque putter they tried, and another found it played like a premium brand at a fraction of the cost. A 7.2 for feel and a 9.4 for value fit those reports.
Where it lacks
Short putts drag the whole result down. Its -4.4 from close range ranked third worst of 26, the medium-range figure of -2.6 is weak too, and an overall -4.9 left it 23rd. Accuracy scores 6.6, the lowest mark on its card.
Options are thin. Left-handed players are out, and anyone who needs a length outside 34 or 35 inches will have to look elsewhere.
“I would lag with it all day. Over a short one, I would want something else in my hands.”- The Club Stand gear team
Reasons to buy
- Cheapest of the 26 putters in a 2026 zero-torque test, priced well below the premium models it shares a rack with
- Long-putt PuttView score of -8.3 is a strong figure for this class
- Owners report a premium-brand feel from a milled face with no insert to dull it
Reasons to think twice
- Finished 23rd of 26 overall in that zero-torque test, with an overall PuttView score of -4.9
- Short-putt PuttView of -4.4 ranked third worst in the field
- Sold right-handed only, in 34 or 35 inches and a single black finish
Specs
| Head | Milled steel mallet |
|---|---|
| Face | Milled, no insert |
| Design | Zero torque |
| Lengths | 34 / 35 in |
| Finish | Black |
More putters we've scored
- Odyssey Ai-Dual S2S #7 2026 - 8.8/10. A zero-torque #7 mallet that beat 25 rivals at every putting distance, and it costs mid-tier money.
- Sub 70 011-SQ 2026 - 8.8/10. A milled aluminum zero-torque mallet that finished second of 26 on the robot without flagship pricing.
- TaylorMade Spider Tour X 2026 2026 - 8.7/10. Lighter than the Spider Tour, nearly as stable, and the most accurate putter in a 2026 test.
- TaylorMade Spider ZT Max 2026 - 8.6/10. TaylorMade stretches the Spider ZT into a bigger, higher-MOI head that keeps its face square on its own.
- PXG Torpedo ZT 2026 - 8.5/10. PXG takes the torque out of its Torpedo mallet without changing a shape players already know.
- PING Scottsdale TEC Ally Blue Onset 2026 - 8.5/10. A compact white mallet whose Onset hosel and top-rail dot keep a pull-prone stroke from drifting left.