Wahl Groomsman 9918-6171V Rechargeable Beard Trimmer
- 0.4 to 20 millimeters cutting range
- Six-position beard regulator plus guide combs
- Corded or cordless use, rechargeable
- High-carbon steel, self-sharpening blades
- 3 Year limited warranty
- Travel lock, soft-grip handle
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A dependable beard and mustache trimmer that runs corded or cordless, with a wide length range. It hums loudly by design and is not a close shaver.
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ASIN: B00009RF1EModel: Groomsman 9918-6171VCategory: Beard & Mustache Trimmers
Overview
A bathroom counter or a travel bag both suit this Wahl trimmer, which runs on its battery or plugged in. High-carbon blades work with a six-position regulator and guide combs for anything from stubble to a full beard.
Running from the cord when the battery is flat means a trim never stops halfway. The regulator and combs cover a wide range of beard lengths. It is a trimmer, so it leaves short stubble rather than a smooth shave, and the motor hum is strong.
Who it's for
Men maintaining stubble, a short beard or a full beard at a set length will use the regulator constantly. Those who want skin-smooth results need a foil shaver.
Pros and cons
- Works corded or cordless
- Wide cutting length range
- Self-sharpening carbon steel blades
- Loud hum during use
- Leaves stubble, not a close shave
- Blades need oiling if wet
Performance notes
Length is set by the regulator and guide combs, which hold the blade a fixed distance from the skin. A fast motor drives the cutter, which is why it hums. Drying and oiling the blades after they get wet protects their edge.
Specifications
| Brand | Wahl |
|---|---|
| Model | Groomsman 9918-6171V |
| Dimensions & fit | |
| Maximum Cutting Length | 20 millimeters |
| Minimum Cutting Length | 0.4 millimeters |
| Length settings | Six-position regulator, guide combs |
| Item weight | 9.3 ounces |
| Item Dimensions | 10.5 x 5 x 4.25 inches |
| Power & efficiency | |
| Power Source | Rechargeable battery or corded |
| Battery Description | Charge fully at least every 6 months |
| Construction & materials | |
| Blade Material | High-carbon steel, self-sharpening |
| Color | Silver/black |
| Material Type | Stainless Steel |
| Included components | |
| Unit Count | 1 Count |
| Warranty & support | |
| Manufacturer Warranty Description | 3 Year Limited Warranty |
| Other details | |
| Recommended Uses For Product | Beard and mustache |
| Connector Type | Power Cord |
| Hair Type | All |
| Other Special Features Of The Product | rechargeable, self-sharpening blades, soft grip, assorted combs |
| Specific Uses For Product | Beard & moustache |
| Target Audience | Men |
Frequently asked questions
Is the Wahl Groomsman a shaver for a smooth shave?
No. It is a beard and mustache trimmer with a 0.4 millimeter minimum cutting length, so it leaves short stubble.
Can I use the Wahl Groomsman while it charges?
Yes. It can run cordless on its battery or plugged in.
Why does the Wahl Groomsman hum so loudly?
The listing says its motor runs at nearly 10,000 cycles per minute, which makes a strong hum that is normal.
How should I look after the battery and blades?
Charge it in full at least every 6 months, and dry and oil the blade with Wahl Blade Oil if it gets wet.