Shamgar was the son of Anath and from the tribe of Benjamite. He ruled for unknown number of years.
He slaughtered 600 invading Philistines with an oxgoad, a formidable weapon about 3 meters long with a sharp metal point. It was used for driving ox and other animals.
Notice Shamgar used what was at hand a oxgoad as he had no sword and with God he got the victory over the enemy of God and his people the Philistines.
Shamgar in Hebrew means: cupbearer, fleer.
31 After Ehud came Shamgar son of Anath, who struck down six hundred Philistines with an oxgoad. He too saved Israel.