For better understanding how both clamps work, the ratios of clamping forces in the ending phase to handlesqueezing forces in the clamping phase were calculated, which defined how much handle-squeezing forces were transferred to clamping forces. The ratios for both redesigned and original clamps were approximately 0.55 and 0.34, respectively. Therefore, it could be concluded that the redesigned clamp was more efficient and caused larger resultant clamping forces, especially in pistol-type clamp usage.
When clamping objects with the handle-squeezing method, approximately seven squeezes of the handle were needed during the starting phase to reduce the distance between jaws to the 3.8cm wooden block width, while these repetitive squeezes were not required with the bar-sliding method. The decreased handlesqueezing and clamping forces while using the handlesqueezing method, presumably due to the forearm fatigue that resulted from this repetitive squeezing movement.