These are the top selling products for the month of December, 2025

MAGNETO SYNCHRONIZER

SKU: E50A

MAGNETO SYNCHRONIZER (E50A)
The ATS E50A Magneto Synchronizer is a modern redesign of the classic test instrument used by aviation mechanics around the world for over 50 years.
Price:$149.95 Sale:$119.95
ATS PRO DIFFERENTIAL PRESSURE TESTER KIT

SKU: 2EM-KIT

ATS PRO DIFFERENTIAL PRESSURE TESTER KIT (2EM-KIT)
This time-saving kit includes our top of the line 2EM Differential Pressure Tester and the new 18MM-XT Spark Plug Port Extender for effortless leakdown testing at a great value.
Price:$182.95 Sale:$145.95
ATS PRO DIFFERENTIAL PRESSURE TESTER WITH MASTER ORIFICE

SKU: 2EM

ATS PRO DIFFERENTIAL PRESSURE TESTER WITH MASTER ORIFICE (2EM)
Our own ATS brand Differential Cylinder Pressure Tester combines the features of our popular 2E tester and a Master Orifice into one tool.
Price:$153.95 Sale:$125.95
ATS MAGNETIC SPARK PLUG SOCKET

SKU: ATS950

ATS MAGNETIC SPARK PLUG SOCKET (ATS950)
Our Spark Plug Socket features a thin-walled design to get into to the tightest confines. Magnet interior guarantees that you won't accidentally drop the plug. Works with all Champion and Tempest Aviation Spark Plugs.
Price:$43.95 Sale:$37.95
CYLINDER BASE NUT WRENCH SET

SKU: 3882-5

CYLINDER BASE NUT WRENCH SET (3882-5)
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.
Price:$158.95 Sale:$132.95
COUNTERSINK KIT W/PILOT CUTTER

SKU: 133KIT

COUNTERSINK KIT W/PILOT CUTTER (133KIT)
Great package deal featuring our 133 Microstop Countersink plus 4 pilot cutters (1000-100 series) in sizes #40, #30, #21, and #12 all packaged in a custom foam lined case.
Price:$65.95 Sale:$54.95
CLECO PACK, 25 PIECES 1/8"

SKU: 25CL-1/8

CLECO PACK, 25 PIECES 1/8 (25CL-1/8)
A package of 25 pieces 1/8" (copper) CLECOLOK clecos.
Price:$22.95 Sale:$18.95
RIVET REMOVAL TOOL

SKU: 1341A

RIVET REMOVAL TOOL (1341A)
Our rivet removal tool comes complete with four drill bits and guides for removing 3/32", 1/8", 5/32" and 3/16" universal head (AN470) solid rivets. Rivets are cleanly removed without damage to the rivet hole or aircraft skin.
Price:$73.95 Sale:$62.95
RED BLIND RIVET REMOVAL TOOL

SKU: 1341S

RED BLIND RIVET REMOVAL TOOL (1341S)
Specifically designed for the removal of blind rivets. Serrated nosepieces lock rivet in place to prevent it from spinning as it's being drilled out . Adjustable depth control with positive stop. Knurled grip for added comfort.
Price:$95.95 Sale:$82.95
REVERSIBLE SAFETY WIRE TWISTER (6")

SKU: 6WR

REVERSIBLE SAFETY WIRE TWISTER (6) (6WR)
Innovative new reversible safety wire twister changes from right hand to left hand twist at the flick of a switch. Positive locking mechanism prevents accidental direction change during series wiring. Assembled in the USA. 6" length
Price:$92.95 Sale:$82.95
UNIVERSAL HEAD RIVET ASSORTMENT PACK (MS20470AD)

SKU: MS20470AD-PK

UNIVERSAL HEAD RIVET ASSORTMENT PACK (MS20470AD) (MS20470AD-PK)
An assortment of MS20470AD Universal Head rivets in the four most commonly used sizes and lengths.
Price:$41.95 Sale:$34.95
FLUSH RIVET ASSORTMENT PACK (MS20426AD)

SKU: MS20426AD-PK

FLUSH RIVET ASSORTMENT PACK (MS20426AD) (MS20426AD-PK)
An assortment of MS20426AD Flush Head rivets in the four most commonly used sizes and lengths.
Price:$44.95 Sale:$37.95