Chip removal through the slot prevents excess waste from clogging the workpiece. Ideal for burr, chatter-free deburring and countersinking. More efficient than a standard countersink. Compatible with wood and light metals. Supplied in a metal storage case. - Chip removal through the slot prevents excess waste from clogging the workpiece. - Ideal for burr and chatter-free deburring and countersinking. - More efficient than a standard countersink. - Compatible with wood and light metals. - Supplied in a metal storage case. - Contents: 2-5, 5-10, 10-15, 15-20mm. - Model No. CSSET4O- Chip removal through the slot prevents excess waste from clogging the workpiece. - Ideal for burr and chatter-free deburring and countersinking. - More efficient than a standard countersink. - Compatible with wood and light metals. - Supplied in a metal storage case.