To get the best drill press for metal you need to pay attention to the following. Some approximate starting advice is to set the spindle speed between 700 1000 rpms for steel above 2000 for aluminum and slow down from there if you get discolored chips or heavy drill bit wearin most cases the drill press will not be able to supply enough power or speed to follow the below recommendations. Fastener Tech Sheet Tapping Drill Sizes Model 5dff5 The irwin 29 piece cobalt m 35 metal index drill bit set includes drill bit sizes measuring from 116 to 12 inch in 164 inch increments. Drill press speed chart metal . Bench mount drill press 12 speed by central machinery fyyf 8 inch drill press 5 speed benchtop drill presses with drill chuck and key 3 amp 225hp 2 inch spindle travel 8 in swing distance 120 volts 60hz orange. The nova voyager dvr digital variable reluctance drill press is the most versatile drill press on the market easily able to handle wood