High Performance Mining Machine Hand Rock Drill YN27C Suitable for Different Rock Layers Product Specifications YN27C Hand-Held rock drills Most suitable for drilling downward and inclined blast-holes in medium nard and hard rock with a  hardness of f=8-18: An ideal tool for rock drilling operations in small open-pit quarries, mines, water conservancy projects and road building in hilly areas, etc., and for secondary blasting in large mines More products
