Rock Drilling T ools 24 www brunnerlay com Brunner Lay Part Number Feet MM Pounds Kilograms Extension R ods Single Thread 2 Round 12 3660 H7144ZZ 1 128 512 14 4265 H7168ZZ 1316 597 20 6095 H7240ZZ 1880 853 24 7315 H7244ZZ 2256 1023 MaleFemale 2 Round 12 4 3760 J7148Z3 1253 568 14 4 4370 J7172Z3 1450 658 20 4 6198 J7244Z3 2005 909 T51 2 51MM Part Number Inches MM Pounds Kilograms Couplings T51 3 76 CCT5100 105 47 Thin W all 21316 714 CCT5100T 85 39 T51 with fats 3 76 CCT5100F 105 47 T45 to T51 3 76 CA45051 64 29 Length W eight Diameter W eight Flats available upon request