Price: (as of - Details) The RotoBrute SB35 Smart Brute Automatic Magnetic Drill Press cuts consistent, fast, smooth, bur-free holes every time. To optimize performance of your mag drill, RotoBrute CT150 or CT200 Carbide Tipped Annular Cutters and BruteLube Fluid are recommended. However, the SB35 has a 3/4" arbor and can be used with most 3/4" weldon shank annular cutters. The SB35 was engineered for heavy duty use and can be used in auto-feed mode or manual mode.