Trend SNAP/CS/SET 5 Piece Drill Countersink Set The Trend SNAP/CS/SET 5 Piece Drill Countersink Set features high-quality, durable heat-treated tool steel countersinks as well as an HSS drill. The HSS drill in the set is designed to produce pilot holes only. Features: Heat-treated tool steel countersinks with an HSS drill Adjustable for different length screws and can produce a 9.5mm (3/8 inch) diameter or 12.7 mm (1/2 inch diameter counterbored hole for wood plugs The drill produces pilot holes only Can produce a counterbored hole for wood plugs 5 piece drill countersink set comprises 5/64\", 3/32\", 7/64\", 1/8\" and 9/64\" drill bits Specification: 1 x 2.0mm (5/64\") drill countersink 1 x 2.5mm (3/32\") drill countersink 1 x 2.75mm (7/64\") drill countersink 1 x 3.25mm (1/8\") drill countersink 1 x 3.5mm (9/64\") drill countersink Weight: 0.148 kg