Using Heli-Coil serrated aviation inserts is the only FAA approved method of repairing damaged spark plug threads. It is also the only method certified by engine manufacturers such as Teledyne-Continental and Textron-Lycoming.

Complete spark gapping kit includes Heavy Duty Gapper, Feeler Gauge, Gap Expansion Tool, and Electrode Erosion Gauge. Precisely sets gap to within .001" and checks to see if they are still serviceable.

Includes the ATS E50A Mag Synchronizer, E5A High Voltage cable tester, Mag Locks, and P-Lead adapters to perform magneto synchronization and ignition quality checks quickly and reliably.

The Magneto Internal Timing Kit is used to set the E-Gap on Bendix S-20, S-200, S-400, S-500, and S-1200 series aircraft and industrial magnetos. Instructions included.

Set of two (2) spline-type (internal hex) wrenches specifically designed to install and remove Lycoming Narrow Deck (ND), IO-390 and IO-580 round cylinder nuts. Sizes are 1/2" and 3/8" and both have a 1/2" square drive.

This extension tube makes it easier to avoid obstructions when performing compression checks. Extends 8-1/2" to clear manifolds, harnesses, etc. For use with ATS model 2E and 2EM Compression Testers. 18MM threads fits most aviation engines.

If you clean a lot of spark plugs, then you know that a vibrator cleaner is the only way to remove stubborn lead deposits. This tool will do the same job as the more expensive vibrator cleaners at a fraction of the cost.

Factory refurbished model of our Spark Plug Cleaner & Tester features the latest in spark plug service equipment. It’s smart, functional styling and rugged construction makes it the perfect choice for anyone who needs to reliably and accurately test spark

New 3882-series Cylinder Base Nut Wrenches feature a 12-point thin-walled hex head, and a 15" span for use with any Continental and newer Lycoming engines.

High internal resistance in spark plugs is rapidly becoming a concern that many IA/AP's are beginning to recognize as the source of rough running engines and chronic magneto related problems.

This tools expands the spark gap of any massive electrode aviation plug safely and efficently. When used properly, it will not cause damage to the plug and allows you to re-gap an over-gapped plug.

The Hastings Ring-O-Matic Piston Ring Compressor Pliers incorporates a precision locking action for exact holding and release of piston ring bands.