Wintersteiger DiscMan 4 is the grinding tool for side-edge tuning of skis & snowboards. The perfect support tool for maintaining, Ceramic Disc Finish edges between shop visits. Exact edge geometry with Ceramic Disc Finish-Technology. Easy handling and Easy side-angle adjustment from 85° to 90° in steps of 0.5°. Mobile use due to a powerful rechargeable battery. Easy changing of the discs.