KD55A DTH Hammer
https://www.kqdrill.com/product/high-air-pressure-dth-hammers/kd55a-dth-hammer.html
Hammer Length without bit:

1187(mm)

Top sub thread:

API23/8″REG PIN

Outside diameter:

126(mm)

Weight:

66(KG)

Bit diameter:

138-165(mm)

Working Pressure:

12-24(Bar)

Air consumption:

9-19(M3/min)

Bit shank:

DHD350R、COP54