The 5000 Series Turbo-Chisel expands Great Plains Manufacturing's vertical-tillage lineup. The series consists of 10 rigid and folding models spanning working widths from 11'3" to 28'9". The front gang features 22" turbo coulters spaced 7½" apart, and the coulter bar is hydraulically adjustable. The chisel can be equipped with standard chisel shanks or parabolic chisel shanks. An optional toggle trip shank automatically resets itself. Optional rear attachments include a buster bar and chopper reel. Base prices: 9-shank, $24,700; 23-shank, $56,400. Contact: Great Plains Manufacturing Inc., 1525 E. North St., Salina, KS 67401; (785) 823-3276; www.greatplainsmfg.com.