Hammer patterns:
| Style | Peen | Angle | Notes |
|---|---|---|---|
| French | Curved | Up | |
| London | Straight | 30° | |
| German | Straight | 45° | |
| Cobbler | Curved | 45° | |
| Crispin | Curved | 90° | |
| Christensen | Curved | 90° | back of peen flattened to form a second striking face |
Hammer patterns:
| Style | Peen | Angle | Notes |
|---|---|---|---|
| French | Curved | Up | |
| London | Straight | 30° | |
| German | Straight | 45° | |
| Cobbler | Curved | 45° | |
| Crispin | Curved | 90° | |
| Christensen | Curved | 90° | back of peen flattened to form a second striking face |