Prairie Dog Boring Equipment is now offering a heavy duty 2″ pilot bit designed for use in hard pan, stabilized soil, cobble, sandstone, shale, limestone and other borable rock. Three bladed tipped with carbide roof bit inserts and side inserts offer aggressive cutting performance and excellent wear resistance for long life. These bits are only recommended for the 900TW, 1200TW and 1800TW. They are available in SMSD and LGSD threads and are currently in stock.