Rock Drilling T ools 12 www brunnerlay com Brunner Lay 112 R ope 118 R28 Part Number Feet MM Pounds Kilograms Drifter R ods 1 12R to 125R 118 Hex 10 112 3073 K31210C 346 157 12 112 3683 K31450C 421 191 14 112 4293 K31690C 480 218 Length W eight