Model GH-4
Minimum pressure from excavator	13 ~ 15
Oil Flow	50 ~ 120
Frequency (b.p.m)	400 ~ 1000
Length with chisel (mm)	1682
Mass with Chisel (Kg)	377
Total Mass with bracket (Kg)	472
Recommendable excavator's mass (ton)	6.0 ~ 9.0