CONNECTING ROD FIVE-PIT ROUND HANDLE ELECTRIC HAMMER DRILL BIT HEXAGON HANDLE ELECTRIC HAMMER DRILL BIT TAPER HANDLE ELECTRIC HAMMER BIT FOUR-PIT ROUND-HANDLE ELECTRIC HAMMER DRILL BIT FOUR-PIT SQUARE HANDLE ELECTRIC HAMMER DRILL BIT STRAIGHT SPLINE HANDLE ELECTRIC PERCUSSION DRILL BIT AIR CORE ELECTRIC HAMMER DRILL BIT GUIDANCE DRILL HAMMER HANDLE CONNECTING ROD