B&Q Chrome Vanadium Steel Ph 1 Phillips Screwdriver (L)100mm. Suitable for driving Phillips head screws this Phillips screwdriver from B&Q has a PH1 tip size & a durable plastic grip handle which has been specially designed for comfort whilst working. Its chrome vanadium steel body is extremely durable & hard-wearing whilst still resisting oxidation corrosion & abrasions through prolonged periods of use.