Professional stud extractors for commercial or occasional use -Metric Allen Key 10mm -Manufactured from chrome vanadium steel for strength and durability -Double jointed design allows access to confined areas Rotating handles -Swivels around 180 degrees for perfect access all the time. -One fixed end for the removal of more stubborn allen keys Total Length: 225mm. Speed brace / winder design style to help tighten bolts quicker.