This device is specifically designed for conducting tensile tests on strings, electrical wires, or ropes.
It effectively secures samples by utilizing the frictional force against the drum, thereby preventing them from being cut at the attachment’s edge.
| Type | Max. Load | Wire diameter | Drum | Upper Weight |
| GC-41 | 50N | φ0.5mm | φ16mm | 27g |
| GC-42A | 500N | φ2mm | φ30mm | 580 |
| GC-42B | 2kN | |||
| GC-45 | 5kN | φ8mm | φ40mm | 3kg |