Screwdriver Set Power Thru 5 Pieces TTX Tray Chrome vanadium blades for greater strength and material flexibilty Percussion cap and full length integral blade for use with a hammer to release stubborn screws Ergonomically designed bi-material handle for easy use with higher torque and faster speed The handle is moulded around the blade to ensure straightness and to allow larger blade wings which give a higher torque capacity Organised in a tool tray module size X4 (TTX4) Flat regular 6.5 x 100mm, 8 x 150mm, 10 x 200mm Phillips type PH2 x 100mm, PH3 x 150mm.