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 12.7mm (1/2 inch) diameter counterbored hole for wood plugs. The drill produces pilot holes only. Shank diameter: 1/4 inch hex. Softwood: No.6 to No.12. Hardwood: No.4 to No.10. Drill dia.: 2mm to 3.5mm. Countersink dia.: 9.5mm and 12.7mm.
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 12.7mm (1/2 inch) diameter counterbored hole for wood plugs. The drill produces pilot holes only. Shank diameter: 1/4 inch hex. Softwood: No.6 to No.12. Hardwood: No.4 to No.10. Drill dia.: 2mm to 3.5mm. Countersink dia.: 9.5mm and 12.7mm.