Filfeel 4mm Banana Plug Test Kit, 30-Piece Back Probe Set

Filfeel’s 4mm Banana Plug Test Kit is a 30-piece back-probe set intended for automotive diagnostics and use with oscilloscopes, multimeters, digital voltmeters and automotive diagnostic tools. Its listed assortment includes angled probes, clips, connectors and piercing tools, though the detailed angle and package descriptions do not fully agree.

At a glance

The listing specifies 4mm plugs and jacks for connecting with compatible test equipment.
The claimed 30-piece assortment covers probes, clips, connectors and piercing tools.
Three probe angles are advertised to help reach terminals in different positions.

Price

$27.46Save 15%

Reference price: ~~$32.30~~

Price checked: 13 Nov 2026

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Pros and cons

Pros

The claimed mix of probes, clips, connecting wires and piercing probes can serve several diagnostic tasks.
The listing names common bench and automotive test instruments as compatible devices.

Technical specifications

6 specifications

Identity
Brand	Filfeel
Model	FILFEELs72rmzgop0

Connections and materials
Plug size	Approx. 4mm / 0.16in
Materials	PVC, Copper, PA

Compatibility and set details
Compatible devices	Oscilloscopes, Multimeters, Digital Voltmeters, Automotive Diagnostic Tools
Probe angles	90°, 135°, 180°

What to know before buying

Listing details to confirm

The listing details are contradictory or inconsistent: the feature text gives probe angles of 90°, 135° and 180°, while the detailed contents list says 90°, 145° and 180°. The page also claims 30 components but its detailed package list totals 31 items when the plastic box is counted. Confirm the selected listing's angles and contents before purchase.

What’s in the box

5 × 90° test probesCheck selected pack
5 × 145° test probesCheck selected pack
5 × 180° test probesCheck selected pack
5 × test clamp/holder connecting wiresCheck selected pack
5 × covered puncture probesCheck selected pack
5 × 4mm test clamps/holdersCheck selected pack
1 × plastic boxCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Automotive technicians or hobbyists seeking a multi-piece back-probe assortment for circuit diagnostics.
Users whose test equipment accepts the listed 4mm plug and jack sizes.

Less suited to

Buyers who need confirmed probe angles or a verified package count before ordering.
Anyone whose equipment does not use the listed 4mm connections.

Filfeel 4mm Banana Plug Test Kit, 30-Piece Back Probe Set · photo 2 — Additional product photo 2

Frequently asked questions

What equipment does the listing say this kit works with?

It lists oscilloscopes, multimeters, digital voltmeters and automotive diagnostic tools. The equipment must accept the stated 4mm plug and jack sizes.

Which probe angles are included?

The feature text names 90°, 135° and 180°, but the detailed package list says 90°, 145° and 180°. Check the selected listing to confirm the angles.

What is said to be in the set?

The detailed list names 15 angled probes, five test clamp/holder connecting wires, five piercing probes with covers, five 4mm test clamps/holders and a plastic box. This does not match the stated 30-piece count, so confirm the contents before buying.