Product Introduction 1. The rock drill has good performance under low pressure; it is suitable for act impetus with long air pipe and small air compressor. 2. And it is use for drilling in mines, quarries, railway construction, water conservancy and national defense project facility. 3. When it is matched with Model FY200A oil reservoir and Model FT160A or FT160B air-leg, it can perform wet drilling under various of rocks at a clinic and incline orientation, it can also use in the trolley without Air-leg. 4. Hand-hold rock drill is a tool for the secondary blasting in quarry and especailly for rocking 20mm hose in marble and granite,it has characteristic of low weight,reasonable structure,handy use and little air consumption. Technical Parameters Type YT23D Weight 24 (Kg) Length 668(mm) Cylinder dia φ70(mm) Piston stroke 70 (mm) Working pressure 0.4~0.5(Mpa) Impact energy ≥45 (J) Impact frequency ≥28 Hz) Air consumption ≤38 (L/s) Working water pressure 0.2~0.3(Mpa) Air pipe inner dia φ19(mm) Water pipe inner dia φ13(mm) Rock drill hole dia φ34-φ42(mm) Rock drill hole depth 5(m) Shank size 22×108 (mm)