Does this require oil?

Thank you for asking. Yes, you need to apply the oil to the trimmer before and after each use for lubrication. Part number for it is WER203X7910. You can find it here: panasonic.encompass.com/item/10387510/Panasonic/WER203X7910/

When i go to the barbor, i ask for a 3.5. does that mean 3.5mm? or is 3.5 different with this trimmer compared to a barber 3.5?

Yeah heart like an ostrich has more of the brain of an ostrich. He some how says that 1 inch is 25.4mm But, then contends that 3 inches is somehow equal to 10mm. Besides that. This product is a scam. You can buy a much cheaper version by the same company that has the same total length of dial settings, 1mm to 10mm, in a 19 setting dial. This one technically has more options, but more settings isn't always better. Seriously who's looking at anyone's beard that closely. The addition of the blade guards is just a real kick in the teeth. If you like to keep your beard longer like I do. You can buy a very nice trimmer that will come with blade guards of various sizes that'll do just as good of a job as this overpriced piece of junk for 1/3 of this price. My advice is don't waste your money here, this is an over engineered, way to expensive product that won't do you any better than it's counterparts. Don't waste your money on things that, claim to have more features, when their proformance is going to be the same. I also just have to point out that, Heart like an ostrich also gave specs about Wahl products when this product is clearly Panasonic, further confirming their lunacy.

As this is a washable unit, does it need a protective oil or some other maintenance to prevent rusting?

Why does this need blade oil and other brands do not?

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Panasonic Cordless Beard Trimmer for Men with Precision Dial, 19 Adjustable Length Settings, Rechargeable Battery, Washable - ER-GB42-K (Black)

Panasonic Cordless Beard Trimmer for Men with Precision Dial, 19 Adjustable Length Settings, Rechargeable Battery, Washable - ER-GB42-K (Black)

Product ID: 61765746

Details

Brand
Panasonic
Color
Black
Item Weight
5.28 ounces
Power Source
Battery
Recommended Uses For Product
Beard Mustache

💧100% washable wet/dry design

🔋50 min fast rechargeable battery

🎚️19 precision length settings

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₪334

Duties & taxes included

In stock

Sold byAmazon IsraelDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
Panasonic
Color
Black
Item Weight
5.28 ounces

Description

🎩 Elevate your grooming game with precision and power—because your beard deserves the best.

POWER UP GO ⚡ - Fast charging cordless battery delivers 50 minutes of uninterrupted grooming—perfect for travel and daily use.
COMFORT MEETS CONTROL 🤲 - Ergonomic rubberized grip ensures maximum comfort and total control for detailed grooming sessions.
CUTTING EDGE BLADE TECH ⚔️ - Ultra-sharp 45-degree hypoallergenic blades inspired by Japanese sword craftsmanship for effortless, clean cuts.
SHOWER READY WATERPROOF DESIGN 🚿 - Trim wet or dry with a fully washable, waterproof body that fits seamlessly into your busy lifestyle.
TAILOR YOUR LOOK WITH PRECISION 🎯 - 19 adjustable length settings let you sculpt your beard exactly how you want it—no compromises.

The Panasonic ER-GB42-K Cordless Beard Trimmer combines 19 adjustable length settings with ultra-sharp, hypoallergenic 45-degree blades for precise beard sculpting. Featuring an ergonomic rubber grip and a fully washable waterproof design, it offers comfortable, versatile grooming wet or dry. Its fast-charging rechargeable battery provides up to 50 minutes of cordless use, making it ideal for both home and travel. Trusted Japanese craftsmanship ensures durability and performance for the modern man.

Specifications

ASIN	B075LQYFNB
Are Batteries Required	Yes
Best Sellers Rank	#7,912 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #10 in Beard Trimmers
Blade Material	Stainless Steel
Brand	Panasonic
Brand Name	Panasonic
Color	Black
Connector Type	Proprietary AC charging connector
Customer Reviews	4.3 out of 5 stars 13,787 Reviews
Global Trade Identification Number	00885170313811
Hair Type	All
Included Components	Charging Base, Cordless Beard Trimmer
Is Waterproof	True
Item Dimensions	1.85 x 6.97 x 1.65 inches
Item Weight	5.28 ounces
Manufacturer	Panasonic
Manufacturer Part Number	ER-GB42-K
Manufacturer Warranty Description	2 year manufacture
Material	Rubber
Material Type	Rubber
Maximum Cutting Length	10 Millimeters
Minimum Cutting Length	0.5 Millimeters
Model Name	ER-GB42-K Panasonic Cordless Beard Trimmer for Men
Model Number	ER-GB42-K
Number of settings	19
Other Special Features of the Product	Charge Indicator Light, Cordless, Ergonomic, Fast Charge, Rechargeable, Travel Size, Waterproof
Power Source	Battery Powered
Recommended Uses For Product	Beard, Mustache
Specific Uses For Product	Edging, Light Shaping, Outlining
Target Audience	Men
UPC	885170313811
Unit Count	1 Count

Reviews

A**.

8.04.2026

M**K

19.12.2024

E**C

9.02.2025

T**R

27.03.2026

D**.

27.02.2026

B**G

7.03.2026

T**A

4.04.2026

O**L

19.12.2025

M**W

25.10.2023

C**S

9.07.2020

C**N

20.10.2022

H**A

10.06.2025

M**.

25.01.2024

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