Countersink Bit 19mm SKU: DRILLCOUNTER19 $14.60 Quantity discounts available QuantityPrice Quantity -+ Add to Shopping Cart Details The countersink machine bit is designed for use with plasterboard, MDF, soft and hardwoods. Details19mm diameter45mm long¼" Hex shank Details Back DetailsThe countersink machine bit is designed for use with plasterboard, MDF, soft and hardwoods. Details19mm diameter45mm long¼" Hex shank