Slim Drill Silent Features of Slim Drill - Pneumatically Operated Drill Capable Of Drilling In Both Down The Hole amp Jack Hammer Modes-Ideally Sutable For Drilling Lead Holes For Diamond Wire Cutting Of Decorative Marble Granite Rocks Etc Machine Has Been Specially Designed For Precareion Drilling Of Matching Holes And Ability To Drill Holes In Both Vertical amp Horizontal Positions A Ball Joint Is Provided At The Bottom Of The Mast To Facilitate Precareion Alignmenst For Matching