These blocks can be used as a temporary fix for repairing broken torsion springs. Tighten the red set screws down on the broken coil and join the two segments. Two blocks are highly recommended for each repair. The broken spring must be wound after the repair is made to the recommended amount of turns. Only use official spring winding bars! DO NOT USE screwdrivers or any tool not made for the purpose of working on the torsion spring.
CAUTION- this repair should only be performed by very capable garage door techs.
CAUTION- working on garage door springs is very dangerous, and can cause serious bodily damage.
COST: $40 for set of 2 (as pictured)