G91 
G1 F500 Y1.1
(HELIX-BORE TO DEPTH) 
G3 f500 Y-2.2 J-1.1 Z-0.1
G3 f500 Y2.2 J1.1 Z-0.1
G3 f500 Y-2.2 J-1.1 Z-0.1
G3 f500 Y2.2 J1.1 Z-0.1
G3 f500 Y-2.2 J-1.1 Z-0.1
G3 f500 Y2.2 J1.1 Z-0.1
G3 f500 Y-2.2 J-1.1 Z-0.1
G3 f500 Y2.2 J1.1 Z-0.1
(STAY AT BOTTOM) 
G1 f500 Z-0.1
G3 f500 Y-2.2J-1.1
G3 f500 Y2.2J1.1
(RETURN TO POSITION) 
G1 f500 Y-1.1
G1 f1000 Z1
G90