Toolpro TP43218 Cutout Bit, 3/16 in Dia, Spiral Flute, Straight Shank

These heavy-duty drywall cut-out bits have a 3/16 in shaft that is sure to hold up longer than the standard 1/8 in cut-out bit. They consistently make the better cut possible without running out on you. This is just one more of the Toolpro line of professional drywall tools for those who make their living with their hands.