The Teng 510506 T Handle Hex Driver is a T-handle hex key with a short arm and a long arm. The short arm provides excellent leverage for easy tightening and loosening. The long arm features a ballpoint head, allowing for a working angle of up to 30 degrees to improve access. Manufactured from chrome vanadium steel for toughness and durability. Size: 6.0mm. Short arm length: 15mm. Long arm length: 150mm.