When the cracks won’t accommodate nuts, hammer in one of these units. The malleable copper head will form to fit the structure of the rock.
- Copper is slightly heavier than aluminum, but more reusable
- Note these are intended for aid placements. Properly placed they can support body weight; they will not support a fall
- Five sizes: 0, 4 x 10mm: 1, 5 x 12mm; 2, 6 x 12mm; 3, 8 x 17mm; 4, 10x 17mm
