Fin Straightening Tool, 8–14 Fins Per Inch MA-FST

The Fin Straightening Tool, 8–14 Fins Per Inch (MA-FST) is a hand-operated fin alignment and straightening tool designed for HVAC condenser and evaporator coil maintenance and repair; it is intended to restore bent or damaged aluminum fins on coils with 8, 10, 12, or 14 fins per inch. The tool incorporates one-piece adjustable resilient nylon combs that engage and straighten fin rows without damaging the soft aluminum material, supporting effective push or pull action over multiple passes in tight quarters where fins are bent or misaligned. A comfortable offset handle with integrated grip helps protect the technician’s knuckles and provides a secure hold during repeated straightening passes, and the tool’s compact form factor allows access between closely spaced fins common on residential and light commercial HVAC coils. MA-FST is sized and configured specifically to work within normal fin spacing for the specified fins per inch range and is made to withstand repeated field use for fin repair tasks in maintenance, service, and installation workflows.