14mm Allen key / hex wrench - HR-14 - by Park Tool
Allen Key Set 22/19/17/16/14/12mm Heavy Nickel Plating Hex Key Wrench Hex Allen Key Large Model High Torque Professional Allen Wrench Bit Allen Key (Size : 14mm-1pcs) : Amazon.co.uk: DIY & Tools
Titan Tools - 1/2 Dr. 14Mm Hex Bit Socket (15614) : Amazon.co.uk: DIY & Tools
Park tool CCW-5 14mm hex socket and 8 mm allen key crank bolt tool | The Cycle Clinic