Model No. LST420

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

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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_1HourRunTimeopt
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™ Transmission delivers more power from the motor to the cutting string so you can get the job done faster
  • The Automatic Feed Spool - AFS® 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
Black And Decker - 20V MAX Lithium 12 in High Performance TrimmerEdger - 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 20V MAX*
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