Model No. LST420

20V MAX* Lithium 12 in. High Performance Trimmer/Edger

4 Reviews

With a dual-mode switch for extra power or extra runtime, this battery-powered trimmer and edger features POWERDRIVE™ transmission to tackle tough overgrowth. Easily converts from trimmer to edger.

Where to Buy

1 Hour of Runtime

Go The Distance

When you’ve got lots of trimming to do, you need the runtime to get it done. A dual-mode switch on our LST400 series cordless string trimmers gives you the option to choose between high power or up to one hour of extended runtime. Patented PowerDrive Transmission™ prevents getting bogged down in heavy grass and weeds, and Automatic Feed Spool™ ensures continuous work without interruption.
LG_1HourRuntime
Includes 2 lithium batteries for up to 1 hour of runtime.

Overview

Features + Benefits

  • Up to 1 hour of runtime - from (2) included 20V MAX* batteries when using dual mode switch in run-time mode**
  • Includes (2) 2.0 Amp hour lithium batteries - each battery delivers 33% more capacity than standard LBXR20 20V MAX* battery
  • Dual mode switch to control power for high performance or longer run time
  • The POWERDRIVE(TM) Transmission delivers more power from the motor to the cutting string so you can get the job done faster
  • The Automatic Feed Spool - AFS(R) automatically feeds trimmer line when needed with no bumping required
  • 2-in-1 Trim or Edge with wheeled edge guide - just rotate to convert from trimmer to wheeled edger.
  • Lightweight design with adjustable handle and height positions provide maximum comfort and control
  • It is quiet and easy to start, delivering great cutting results without the mess and hassles of gas powered trimmers
  • Part of the 20V* MAX System - A System that Demands Attention. 1 Battery fits multiple tools
  • *Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18.
  • ** under normal cutting conditions in run time mode using both batteries included
LST420

Product Specs

Cutting Swath 12 in
Feed System AFS
Line Diameter .065 in
Power Source Lithium Ion
Replacement Accessories AF-100; RC-100-P
rpm 7200/5500 rpm
Voltage 20 V
Weight 5.7 lbs
Uses
  • Trimming areas of overgrowth after mowing
  • Edging along borders, sidewalks and flower beds
Includes
  • LST420 20V MAX* Cordless Trimmer/Edger
  • (2) LBXR2020-OPE 20V MAX* Batteries
  • (1) Charger
  • (1) AF-100 Spool
  • (1) Guard
  • (1) Handle

 

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Review of 12

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4 reviews


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5

This review is hidden because you have chosen to ignore d_eld@2014. Show DetailsHide Details

Love this trimmer!

This product must have been designed by a woman (smile). I enjoy doing yardwork and reaping the benifits of having a nice yard, but the trimming has always been the absolute worst! Everything I hate about a gas trimmer has been corrected in this product. Its lightweight (no more aching arms!)and no more pulling and yanking on a cord until I want to scream and throw it across the yard and then having to take it to hubby to start the thing. This trimmer is also durable and can easily handle my large yard. Thank you B&D for designing a trimmer that fits my needs.

Pros: Lightweight; durable; battery operated;

Cons: Have not discovered any cons yet.

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5

This review is hidden because you have chosen to ignore larryr52. Show DetailsHide Details

Fantastic Yard Tool!

I purchased this unit to replace an 8 year old B&D corded unit. I was ready to be cord free and thought lithium batteries could be the solution. I read all the reviews and can honestly say that this trimmer exceeded my expectations. I have been doing my own yard work for 40 years and am particular with the equipment I buy. The trimmer performed very good in all conditions. The dual power stages is a great feature. The automatic line feeding works flawlessly and better than competitor models. It is so easy to trimmer quickly, my trimming time has been cut in half and the battery life has been great. I had previously bought the B&D 20-volt hedge trimmer and was so impressed with it's power I purchased this trimmer/edger. Two family members have purchased this trimmer based on my recommendation.

Pros: Dual power settings, automatic line advance, light weight, adjustable handle, and rotating head. Battery life is excellent.

Cons: The price of pre-wound spools is a little expensive.

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5

This review is hidden because you have chosen to ignore mike931. Show DetailsHide Details

Very Good Product

Just bought the lst420 to replace a trimmer that wore me out dragging a cord around! I am impressed with this trimmers over all performance. Light weight and plenty of power. Edger is a tremendous help. I highly recommend this product if your looking for a great little trimmer!

Pros: Light weight, no power cord to drag around and two batteries keep you in power for long enough to do a average size yard!

Cons: No problems so far!

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5

This review is hidden because you have chosen to ignore tmbrown533. Show DetailsHide Details

Best lightweight trimmer I have ever used!

I bought the 20V LST420 trimmer a couple of days ago! I have a 4 cyl larger trimmer but could not use it because of neck and back surgery. After the first use of the LST 420 I had no back or neck pain. It is light and with the two batteries that come with it I have never run out of power. The LST 420 trimmer is everything that Black and Decker advertises it to be!

Pros: Lightweight, adjustable, edger works as advertised. It is a great little trimmer. I love it.

Cons: Nothing so far

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