Tip size: 4.0mm Tip length: 120mm HUDY profiTOOLS are based on highly-successful Hudy Professional Tools used by RC factory teams and world champions, and are available in most popular sizes and types. Each tool has a special, CAD-designed tip made of world-renowned Hudy Spring Steel™ to very precisely fit the corresponding fastener, allowing unmatched torque and long life. Lightweight, comfortable molded handles with machined hubs are designed to allow easy tip exchange. • most affordable professional tools with unmatched value • special composite handle with perfect handgrip design for unsurpassed grip and torsion • three different handle sizes for maximum torque • alu machined hubs for easy tip exchange • tips handmade from world-renowned top-secret Hudy Spring Steel™ Hudy profiTOOLS are available in all sizes and various lengths, types, and measurements: • inch and metric hex and ball-hex drivers • slotted and Phillips screwdrivers