Y20LY The rock drill is a kind of light rock drill machinery. It can perform both dry and wet drilling under medium hard or hard rock(f=8-18) .(the diameter of blast hole is 34mm-40mm, the depth of hole is 3m) This machine can drill downward with hand toward horizontal or acclive,when it is matched with air-leg model FT100,it is suitable for drilling works in various mines,quarries,capital construction of farmland,balsting for consturucting roads in mountain areas and other projects. This machine has transparent surface of FY200B lubricator to gurantee good lubrication,but also can be matched with model FT100 air leg. Specification Weight ¡Ã18kg Length ¡Ã609mm Cylinder dia 60mm Piston stroke 50mm Air pressure 0.4Mpa Impact frequency ¡Ã3Hz Air pipe inner dia 16 or or19mm Water pipe inner dia 8mm Air consumption ¡Ã25 L/S Shank dimension 22¡Ã108mm¡Ã1mm Bit dimension 34- 40mm