Tormek-AWT-250-Advanced-Water-Trough Published December 11, 2012 at 380 × 280 in Tormek AWT-250 Advanced Water Trough and Ezylock for T-7 Blade Sharpeners An attachment to Tormek’s older T-7 sharpeners (and already equipped on new ones) the AWT-250 trough adds a water shoot and magnet for cleaning blades before, during, and after sharpening.