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Specialty Tools - Engine - Thread Chasers
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7-Piece Master Thread Chaser Set
Coverage for Most Automotive Thread Repair Applications
The ARES 7-Piece Master Thread Chaser covers a variety of thread repair sizes: M10 x 1.00/M14 x 1.25 combo tool, M12 x 1.25 and M18 x 1.5 for O2 sensors, M14 x 1.25 standard and M14 x 1.25 limited access long length for spark plugs, and M20 x 1.5 and M22 x 1.5 for NOx and soot sensors. Made of heat-treated carbon steel with a manganese phosphate finish, each single-application chaser features a square drive for use with ratchets and a durable storage case to neatly and conveniently stores tools.
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. -
M14 x 1.25 Limited Access Spark Plug Thread Chaser
Low Profile Design for Spark Plug Thread Repair in Obstructed Spaces
The ARES M14 x 1.25 Limited Access Spark Plug Thread Chaser Tool offers superior versatility for spark plug thread repair. Made of premium heat-treated carbon steel with a black manganese phosphate finish for increased durability, longevity, and corrosion resistance, this thread chaser features a 3/8-inch square drive for use with ratchets and other drive tools, and a thin profile circular drive end to repair spark plugs that require M14 x 1.25 thread chasers in spaces with limited access.
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M18 x 1.5mm Oxygen Sensor Rethread Tool
Clean Oxygen Sensor Hole Threads Easily
The ARES Oxygen Sensor Rethread Tool allows you to re-tap oxygen sensor threads easily to straighten damaged threads and prevent future cross-threading. This versatile tool can be used with a 3/8-inch hex socket or 3/8-inch square drive ratchet and makes it easy to keep your vehicle running smoothly.
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M22 x 1.5 & M20 x 1.25 Combo Thread Chaser Tool
Double-Ended Combo Thread Chaser for NOx Sensor and Soot Sensor Coverage
The ARES M22 x 1.5 & M20 x 1.25 Combo Thread Chaser Tool features two thread chaser sizes for superior versatility and coverage. Made of premium heat-treated carbon steel with a corrosion-resistant black manganese phosphate finish for increased durability, longevity, and corrosion resistance, this double-ended combo thread chaser reduces clutter and provides size coverage for accessing and repairing nitrogen oxide sensors and soot sensors that require M22 x 1.5 and M20 x 1.25 thread chasers.
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76-Piece Master Ratcheting Tap and Die Set
Create and Repair Screw Threads with Ease
The ARES 76-Piece Master Ratcheting Tap and Die Set includes the following: 34 taps, 34 dies, one die chuck, one hex key, and one screwdriver. Also included are a rod bar, SAE and metric thread pitch gauges, a stepped tap chuck, a ratcheting 72-tooth T-wrench, all in a durable case with tap holders. Constructed of high-quality bearing steel with titanium coating on each tap and die that comes in 18 SAE and 16 metric sizes, this set is perfect for repairing external and internal threads.
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. -
M12 Back Tap Thread Repair Tool
Collapsible Design Easily Repairs Threads From Inside Out
The ARES M12 Back Tap Thread Repair Tool features a compact design with an overall length of 4-3/4” (121mm) and a thread spec of M12 x 1.25mm. Made of premium heat-treated chrome moly steel with a zinc plating finish, its collapsible back-tap design repairs threads from the inside out, preventing metal shavings from entering the combustion chamber. This tool also has a knurled thumb nut for sturdy grip and is perfect for O2 sensor bungs and small engine applications that utilize M12 spark plugs.
James Davis
2025-08-26 13:13:17
I'm a mechanic at a used car lot, and we got a Sport-Trac from the car auction for peanuts because the engine ran poorly and the engine light was on. Sad to see, it looks like the previous owner was doing a tune up at home (judging by the spark plug gap gauge, and empty spark plug boxes still in the cupholder) and crossthreaded one spark plug to where it wouldn't even seal the cylinder anymore. Luckily he only got it about 3 threads in, and didn't strip them out, just smashed them out of shape. With this tool I repaired the hole in about 10 minutes total, and it runs like a champ again.
Michael Griffin
2025-07-11 12:00:34
I recently bought a new Honda generator and was converting it to propane. In the process, I had to take out the spark plug to re-gap. While taking the plug out, I damaged the spark plug hole threads. Fearing I was going to have to use a tap and deal with shavings in my cylinder, or worse, replace the cylinder head, I was quite upset. Then, a buddy sent me a YouTube video of someone using this backtap. It had tons of good reviews, so I ordered one myself, and it worked just as advertised! Super easy to use and pulls out all the shavings with it! 10/10 saved my new generator!
Jbasil
2025-05-16 18:22:44
It broke mid way through fixing a spark plug thread. Now two of the pieces are sitting in my cylinder. Do not buy...
Luis Morales
2025-05-08 11:33:44
Buena para limpiar una rosca poco trancada, pero si la rosca está muy dañada es mejor comprar un kit de reparación, que hace una rosca nueva.
Gary King
2025-05-07 11:40:01
I partially stripped the spark plug threads on one of the cylinders in my truck and thought it was going to be thousands of dollars to fix. I purchased this tool and received it in two days. I used the tools according to the directions and was able to clear the threads from the inside out. I put the new spark plug in and it threaded perfect. Great tool.
Kevin D.
2025-04-30 17:25:56
Easy to use
Ken S.
2025-04-22 14:18:44
I was able to restore a stripped spark plug hole on a pressure washer. It restored the thread from the inside out as designed and was well worth the expense.
Customer
2025-03-26 11:35:48
I recently changed the spark plug on my Snapper 21" walk behind mower and the new plug wouldn't go in but about 1/4". Then the old one wouldn't either. I couldn't see anything on the threads and neither tooth brushes nor bottle brushes helped. Thought I was SOL until I found this back tap. Followed instructions with grease (I used white lithium grease I already had). On the first insert into the spark plug hole it didn't want to fit clear into the combustion chamber so I just put it as far as it would go and started turning it out adjusting the screw knob with each turn of the tool. After a couple times the tool went clear into the chamber. I probably repeated the process 5 or 6 times. When I tried the spark plug it went in again by hand. (I only ever put spark plugs in by hand. I never use a wrench until the plug bottoms out in this case on the smash washer.)
jpl
2024-12-14 12:12:02
Did the job on my 1981 Yamaha midnight maxim, the spark plug couldn’t go in and this tool did the job. It took 4-5 times to get it right.
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