Eliminates expensive secondary deburring. Deburrs the top of the tapped hole as the tap is being withdrawn from the workpiece. Cuts in reverse only for a smooth clean chamfer. Independent Burr-Bit spring pressure produces same-depth chamfer every time. Repeatable results for thousands of cycles. Easy to install. Simply slips over the tap. Easily resharpenable on radial relief grinding fixture. Picture Shown: #12-3FL.
