Hydraulic Breaker Chisel Type of Hydraulic Breaker Chisel- Wedge Tool,Moil Point & Blunt(Flat) Tool Wedge Tool 1.Hard and abrasive rock with fractures 2.For application where drilling and blasting can't be used 3.Material with low penetration rate Moil Point 1.Soft,nonabrasive and tough rock(especially concrete) 2.Materials requiring high penetration rate 3.Where chisel have excessive retaining pin groove wear Blunt(Flat) Tool 1.Hard rock with low or medium abrasive content 2.Boulder breaking or concrete demolition 3.Application where tool wear rate is low