Makita 782424-9 - Lock Nut Wrench Makita Lock Nut Wrench is designed to work with Makita Angle Grinders for tightening and loosening the lock nuts for accessory changes. The wrench is made of high quality steel for added durability and long life. The convenient design makes it easy to operate for added user convenience. FEATURES For tightening and loosening the lock nut on Angle Grinders Easy to use design High quality material for long life For use with select Makita 4-1/2",5" & 6" Angle Grinders Item is new and unused.