Manufactured from chrome vanadium steel for strength and durability. This 1/2" drive ratchet fits any 1/2" drive sockets or extensions. It features a 72-tooth fine ratchet design for access into awkward areas with 5-degree increments. The quick-release button ensures sockets are easily removed but stay secure during use. Forward and reverse operation is controlled by a simple lever. The length extends from 460mm to 610mm (18" to 24"). It's easy to extend by pulling back the lever and sliding the bar to lock at the desired length. The plastic grip handle provides comfort and secure grip during operation.