Hi yes they are hollow and the worked well or removing a glow plug on my vw Passat.

How deep are they? The description says 120mm, but I need to double check as some sellers are putting the package length instead. Thank you.

120mm is the total length, they bolt end is about 30mm and 70mm of tube , 20mm for socket end

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US PRO Tools 10MM + 12MM Extra Deep Glow Plug Sockets 6PT 3/8" DR 3647

Product ID: 344349251

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Details

Brand
US PRO
Finish type
Polished
Item length
120
Material
Metal
Number of pieces
1

📏120mm extra deep length

🔩6-point hex precision grip

⚙️3/8" drive compatibility

Description

⚙️ Unlock recessed bolts like a pro — don’t get left behind!

TRUSTED BY PROS - Ideal for BMW, FORD, VAG & Vauxhall parking brake adjustments.
VERSATILE DUAL SIZES - Includes 10mm & 12mm sockets for glow plugs and long bolts.
DURABLE POLISHED METAL - Built to last with premium metal finish for heavy-duty use.
RELIABLE 6 POINT DESIGN - Secure grip reduces rounding and slippage on hex fittings.
PRECISION FIT FOR TOUGH JOBS - Extra deep 120mm sockets reach recessed bolts effortlessly.

The US PRO Tools 10MM + 12MM Extra Deep Glow Plug Sockets are precision-engineered 6-point, 3/8" drive sockets with a 120mm length, designed for recessed fixings and diesel glow plugs. Trusted by automotive professionals for durability and reliable grip, these polished metal sockets fit 10mm and 12mm hex fittings, making them essential for complex repairs on popular car brands.

Specifications

ASIN	B099S7KTZM
Best Sellers Rank	16,515 in DIY & Tools ( See Top 100 in DIY & Tools ) 122 in Socket Sets
Bit Compatibilities	10mm Hex, 12mm Hex
Brand	US PRO
Customer Reviews	4.6 4.6 out of 5 stars (440)
Drive Bit Shank Style	Shank
Drive System	Hex
Finish	Polished
Item Length	120 Centimetres
Item Type Name	10MM + 12MM Extra Deep Glow Plug Sockets 6PT 3/8" DR
Item Weight	270 Grams
Manufacturer	US PRO
Material	Metal
Model Number	3647
Number of Pieces	1
Unit Count	1.0 Count

Reviews

S**R

Good product

I needed the 10mm for the glow plug and it worked perfectly worth the money.

29.01.2026

A**C

Would recommended

Well made, not a cheep fake replacement

13.03.2026

D**C

... useful but incomplete

Good quality the 12 is bonus but I prefer the magnetic insert in sted so extracting to be secured in one go special when is coming to glow plugs.

8.10.2025

S**.

Good price

Seem quite well made had no issues when using them..

3.12.2025

M**G

Great price.

Perfect for changing glow plugs on a 2016 VW tiguan, 12mm for the glow plug with the sensor and 10mm for the other 3 plugs.

12.01.2026

C**M

Good price for quality part

Excellent fit for narrow engine glowplug removal

4.02.2026

A**R

Good quality👍👍👍

18.11.2025

G**D

super

fits perfectly for the job

15.11.2025

O**.

Top Stecknüsse. Sind perfekt geeignet zum Wechsel von Glühkerzen an VAG TDI (VW, Skoda, Audi) für die normalen 10er Kerzen, wie auch für die 12er Kerze mit Drucksensor.

3.01.2026

U**R

Fonctionne pour extraire les bougies de préchauffage sur Volkswagen 1.9 tdi/sdi

26.07.2025

C**N

Todo perfecto recomiendo

12.12.2025

D**.

tres satisfait du produit

27.02.2026

P**O

Ottimo prodotto

5.01.2026

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