Lotus - Model FF 6 -6 Inch DTH Hammer

6” Valve-less DTH Hammer, with Top connection Threads 3 1/2” API REG PIN, Shank Type – Sandvik Mission-6. SUITABLE BUTTON BITS : Flat face(Optional – Concave Face). Dia – 6” ( 152 mm)* , Dia – 6 ½” ( 165 mm). Dia – 7” ( 152 mm)*, Dia – 7 ½” ( 165 mm). Dia – 8” ( 203 mm) *, Dia – 8 ½” ( 216 mm).