System combines rock drill and core drill in one unit
Model 240B SRA “combo” drill system combines the standard features of Model 210B SRA with the capability of converting to a pneumatic core drill. Caters to rock-drilling and core-drilling applications, eliminating need for a separate drill system. Conversion process requires a few simple tools and can be conducted quickly while on job site. Features totally pneumatic operation. Core drill uses a three-speed motor (400, 900 and 1,600 rpm) and requires a minimum of 77 cfm for operation; standard rock-drill configuration requires 100 cfm. E-Z Drill, Stillwater, Okla.