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30-day refund/replacement
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Availability:
In Stock.
Arrives
Sunday, Jun 28
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Features
- Color identified Back Probes for use on harness connectors, fuel injectors and automotive sensors
- Stainless steel, straight, 45 and 90 degree probes in .027" and .040" diameters
- Insulated body for testing up to 30 volts
- 12" extension leads quickly plug in to permit testing in recessed areas, compatible with standard 4mm plug
- Probes easily insert into automotive connectors
Description
M10x1.0 Flare Nut European/Domestic 4 pack.
Manufacturer: SG Tool Aid
Part Number: 23500
Item Weight: 0.16 ounces
Product Dimensions: 9 x 4.5 x 1.25 inches
Item model number: 23500
Is Discontinued By Manufacturer: No
Size: One Size
Color: BLUE
Power Source: Corded Electric
Item Package Quantity: 1
Included Components: Tool Aid - 20 Piece Back Probe Kit (23500)
Batteries Included?: No
Batteries Required?: No
Warranty Description: Warranty
Date First Available: September 28, 2013
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Jun 28
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: One Size
Great test leads. They hold up pretty good. Highly recommend them.
Reviewed in the United States on October 22, 2025 by Ludwin
Size: One Size
As promised!!!! Great product at a reasonable price.
Reviewed in the United States on June 29, 2025 by Hardi Tool LLC
Size: One Size
Works great for backprobing connections.
Reviewed in the United States on January 6, 2025 by RICARDO C.
Size: One Size
This back probe kit was very handy when measuring voltage and resistance in automotive wires. Be careful when handling because the points are VERY sharp and can easily puncture skin. Each probe comes with a clear rubber cap to protect the tip and the person handling it. However, the cap could be easily lost. This kit helped me troubleshoot a problem between an automotive fuse box and engine control unit (ECU). The needle is thin enough to fit between a connector's backshell and pin yet still make electrical contact. The durability of the probes are good but I noted 1 needle fell out from its socket. It can be reinstalled but there is nothing to lock the needle into place. As long as the needle is supported during removal and installation then it shouldn't be a problem. This is a delicate item so will not take much to break it. NOTE: These probes are not meant to pierce the protective sheath of the wire. It is intended to make contact with a metal pin or socket inside a connector without causing damage to that connector.
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Reviewed in the United States on November 13, 2021 by George S
Size: One Size
Probes are durable and easy to use
Reviewed in the United States on July 4, 2025 by Randy Martin
Size: One Size
Awesome little kit for backprobing. I especially like the fact that there are also 45 and 90 degree for the hard to reach areas. The banana/alligator leads are icing on the cake. I used to only use sewing T pins which worked fine but have to be careful when probing close to each other because of the potential to short them when testing. This backprobe kit doesn’t fully eliminate shorting accidents but greatly reduces them with the plastic end of the probes. Another great feature I personally like is the probes are different colors so at a glance you can differentiate different circuits and also keep scope leads color coordinated with the channel leads. Lastly the case for the probes is compact and lightweight so it’s not cumbersome to store or bring with you
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Reviewed in the United States on October 13, 2018 by Amazon Customer
Size: One Size
More useful than a plain t-pin for most non-invasive automotive circuit diagnostics. The tips are very slim and do a great job of probing connectors. Wires are soldered to the alligator clips. Saw a similar set on the Matco truck for $50+.
Reviewed in the United States on January 13, 2019 by Robert Rodriguez
Size: One Size
As a retired mechanic, i can only say I wish they had these those year. They are small enough not to ruin the rubber water protection unlike a paper clip, that are used on many electrical connections on cars from past to present. The different angels are great getting into connectors that are in a difficult positions and the different colors are helpful if you are going to test more than one circuit or using one as the positive and one for the negative. The alligator leads are long enough so that you can get your volt meter on them.
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Reviewed in the United States on June 27, 2016 by Flying Eagle