Sealey Crankshaft Sensor 4mm Ball-End Hex Key 80mm Long Reach - VAG. This is a crankshaft sensor hex key with an 80mm long reach. It features a 4mm ball-end hex key made from Chrome Vanadium. It is designed to fit a wide variety of VAG vehicles. Model: VS0584. Brand: Sealey. Quantity: 1 Piece. Payment is preferred through PayPal for faster dispatch and simplicity. If you do not have a PayPal account, you can pay over the phone with a minimum order value of £25. Once your payment has been received, an email confirmation will be sent and your order will be processed accordingly. We are VAT registered.