Draper Metric/Imperial Combined Long Pattern Hex Key Set - KW30/B 21489c it uses a cone adaptor

it uses a cone adaptor system to seal and pressurise the cooling system

Fleetguard HF6546

and dependable performance under load in demanding working environments

Overall Length: 110 mm

Draper Metric/Imperial Combined Long Pattern Hex Key Set - KW30/B 21489c it uses a cone adaptorManufactured from chrome vanadium steel that's hardened and tempered. The long arm is particularly useful when working in confined spaces and varies in length from 65mm on the 0. 7mm 0. 028" through to 170mm on the 10mm 3 8" size. Display packed in plastic case. 15 x Metric keys: 0. 7, 0. 9, 1. 3, 1. 5, 2. 0, 2. 5, 3. 0, 4. 0, 4. 5, 5. 0, 5. 5, 6. 0, 7. 0, 8. 0, 10. 0mm 15 x Imperial keys: 0. 028, 0. 035, 0. 050, 1 16, 5 64, 3 32, 7 64, 1 8, 9 64, 5