BLACK+DECKER 3-in-1 String Trimmer/Edger & Lawn Mower
- 12 inch cutting width
- 6.5 amp, corded electric
- 3-in-1: mower, string trimmer and edger
- 7 positions listed
- Automatic Feed Spool
- 10.2 pounds
- 2 year limited warranty
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A corded three-in-one for small lawns that mows, trims and edges without a battery to charge. The cord limits range, and the narrow width suits small areas only.
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ASIN: B00HH4K6XSModel: MTE912-B3Category: Walk-Behind Lawn Mowers
Overview
A homeowner with a small lawn and no wish to charge batteries gets a corded tool that converts between mower, string trimmer and edger. A high-torque motor drives all three modes.
A high-torque motor and an Automatic Feed Spool are aimed at continuous work on overgrowth, and a corded motor never runs down mid-job. The cord has to reach the lawn, so its length and routing decide how much ground it covers.
Who it's for
Owners of small yards who want a single plug-in tool for three chores. Anyone with a long yard, or who dislikes handling a cord, should look at a cordless version.
Pros and cons
- Mows, trims and edges
- Corded, no battery to charge
- Automatic Feed Spool
- Detachable mower deck
- Tethered by the power cord
- Narrow cutting width
- Cord length not listed
Performance notes
A high-torque corded motor supplies steady power throughout, and the Automatic Feed Spool advances line for bump-free trimming. With the deck attached it mows, and without it the tool trims or edges.
Specifications
| Model | MTE912-B3 |
|---|---|
| Dimensions & fit | |
| Cutting width | 12 inches |
| Weight | 10.2 pounds |
| Power & efficiency | |
| Power Source | Corded electric |
| Motor | 6.5 amps |
| Construction & materials | |
| Material Type | Plastic |
| Color | Black and red |
| Warranty & support | |
| Warranty | 2 year limited |
| Other details | |
| Number of Positions | 7 |
| Operation Mode | Manual |
| Modes | Mower, string trimmer, edger |
| Line feed | Automatic Feed Spool |
Closest rivals on specs
American Lawn Mower 1204-14 14-Inch 4-Blade Push Reel Lawn Mower- Cutting width 12 vs 14 inches (-14%)
- Item Weight 10.2 vs 2.2 pounds (+364%)
WORX Cordless Lawn Mower- Item Weight 10.2 vs 29.1 pounds (-65%)
Frequently asked questions
How do I convert the BLACK+DECKER MTE912 between mower, trimmer and edger?
The listing says it converts easily and includes a detachable mower deck, an auxiliary handle and operating instructions. It gives no step list, so follow the manual.
Does the BLACK+DECKER MTE912 run on a battery?
No. It is a corded electric tool with a 6.5 amp motor.
What is in the box with the BLACK+DECKER MTE912?
The components list a spool of trimmer string, an auxiliary handle, the detachable mower deck, a guard and operating instructions.