Countersink drill bit set intended for the creation of pilot holes and countersinks at once.Suitable for use on a range of materials such as wood, plastic, PVC, plywood, rubber and more.Manufactured from 4241 HSS steel.Drill bits fitted with a 1/4"Hex shank and can be used with any standard sized drill chuck.Hex key supplied to adjust drill bits to accommodate different length screws.Sizes: Ø2, 2.5, 2.75, 3.25, 3.5mm.Model No. CSSET5ALL-IN-ONE - Countersink drill bit set intended for the creation of pilot holes and countersinks at once.APPLICATION - Suitable for use on a range of materials such as wood, plastic, PVC, plywood, rubber and more.STEEL TYPE - Manufactured from 4241 HSS steel.HEX SHANK - Drill bits fitted with a 1/4"Hex shank and can be used with any standard sized drill chuck.ADJUSTABLE - Hex key supplied to adjust drill bits to accommodate different length screws.SIZES - Ø2, 2.5, 2.75, 3.25, 3.5mm