Lezyne V Tools are compact, low profile tools made with lightweight and durable materials. They feature CNC-machined aluminum side plates and a forged and CNC-machined aluminum chain breaker (9/10/11 speed chain - V10 and 11). Chrome Vanadium bits and fastening hardware is durable and nickel plated. Forged, Center-Pivot bits increase tool rigidity and improve ergonomics. V - 7 HEX: 2.5, 4, 5, 6mm Torx: T25, T30 Flat Head