A five piece set of heat treated tool steel countersinks with hex shafts.

They are fitted with High Speed Steel drill bits to cover the full range of screw sizes and are self clearing.

They are adjustable for different length screws and will produce a 9.5mm (3/8in) or 12.7mm (1/2in) diameter counterbored hole to fit standard woodplugs.

Contents.
2.0mm (5/64in) Drill & C/S Size No.4.
2.4mm (3/32in) Drill & C/S Size No.6.
2.8mm (7/64in) Drill & C/S Size. No.8.
3.2mm (1/8in) Drill & C/S Size. No.10.
3.6mm (9/64in) Drill & C/S Size. No.12.