Lang Magnetic Speedometer Sending Unit Wrench Description: Lang Magnetic Speedometer Sending Unit Wrench is an extra long reversible offset ratcheting wrench used to remove/install magnetic speedometer sending units for Harley-Davidson® Sportster® motorcycles and other Harley- Davidson® applications with magnetic speedometer sending units. The Lang Magnetic Speedometer Sending Unit Wrench features a magnetic 1/4” drive Shortened 3/16” ball-end hex bit that allows access to remove/install sending units without further disassembly. Lang Magnetic Speedometer Sending Unit Wrench features a vinyl grip that prevents the wrench from scratching or marring the bike.