Makita 18v LXT BGA452 vs Dewalt 18v DC410 vs DC411 vs DC415 36v corldess grinder

This is a short comparison test of 3 4-1/2″ / 114 mm cordless grinders / cut-off tools. Tests were done with a 3/32″ and 1mm abrasive wheels on a 1/2″ steel rebar by repetitive cutting of 1/2″ pieces until the battery was completely dead. There were 3 tests done for each tool.