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.• ALL-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, 3.5mmSpecifications Model No CSSET5 Brand: Sealey Contents: Ø2, 2.5, 2.75, 3.25, 3.5mm Nett Weight: 0.155kg