— We will cover all the small desktop CNC machines, knee mills, and best CNC machine brands as we go along. What's Your Budget? The third factor to consider is, of course, cost. ... Cutting Area 6" x 10" x 1.5" (152 x 254 x 38mm) 15,000-RPM Electric Spindle; HAAS Control; ER11 Collet; Runs on single-phase 120V or 220V (As requested)