Performance
Full cavity-back shaping expands forgiveness on imperfect contact.
Sub 70 performance, selected by Grater Golf
Forged cavity-back ironMid- to mid-high-handicap golfers who want full-cavity forgiveness without giving up one-piece forged feel.
*These are the stock shafts/grips and can be upgraded if you choose to customize your set before adding to the cart.

Why this model stands out
Full cavity-back shaping expands forgiveness on imperfect contact.
Low CG supports easier launch and useful trajectory.
Leading- and trailing-edge bevels improve turf interaction.
Club overview
| Brand | Sub 70 |
|---|---|
| Model family | 669 CB Irons |
| Club category | Forged cavity-back iron |
| Grater Golf listing type | .355 taper-tip iron component |
| Construction | One-piece DT-4 carbon-steel forging with a lower center of gravity and 9 grams of tungsten weighting for launch assistance and draw bias. |
| Official specification note | Component availability and iron numbers are defined by the selected catalog listing. |
Compare the loft, lie, offset, bounce, head weight and standard playing length across the complete 669 CB iron set.
| Head Number | 4 | 5 | 6 | 7 | 8 | 9 | PW | AW |
|---|---|---|---|---|---|---|---|---|
| Loft | 22° | 24° | 27° | 31° | 35° | 39° | 44° | 49° |
| Lie | 60.5° | 61° | 61.5° | 62° | 62.5° | 63° | 63.5° | 64° |
| Offset | 4.75 mm | 4.5 mm | 4.25 mm | 4 mm | 3.5 mm | 3 mm | 2.5 mm | 2 mm |
| Bounce | 1° | 2° | 3° | 3.5° | 4° | 4.5° | 5° | 10° |
| Head Weight | 249 g | 256 g | 263 g | 270 g | 277 g | 284 g | 292 g | 301 g |
| Standard Length — Steel | 38.5" | 38" | 37.5" | 37" | 36.5" | 36" | 35.75" | 35.5" |
| Standard Length — Graphite | 39" | 38.5" | 38" | 37.5" | 37" | 36.5" | 36.25" | 36" |
5.5 mm
78 mm
6-Iron
DT-4 Steel
Brushed Satin
.355" Taper
Top-line width and blade length measurements are based on the 6-iron. Standard playing length varies according to the selected steel or graphite shaft. Specifications are subject to normal manufacturing tolerances.
Mid- to mid-high-handicap golfers who want full-cavity forgiveness without giving up one-piece forged feel. A fitting remains the best way to confirm loft, lie, shaft, length and set makeup.
One-piece DT-4 carbon-steel forging with a lower center of gravity and 9 grams of tungsten weighting for launch assistance and draw bias.
Before ordering
Build with confidence
We’ll help confirm the model, handedness, loft, shaft compatibility and assembly plan.
Product design information referenced from Golf Sub 70. Manufacturer specifications and availability can change.
Free standard shipping on most orders $100+ within the contiguous U.S. Eligible items may be returned within 30 days. Custom, modified, cut, installed, and made-to-order products may be final sale.