6.3mm (1/4"), Length:153 mm, 105g; 9.5mm (3/8"), Length: 197mm, 215g; 12.6mm (1/2") , Length: 247mm, 430g
72-tooth gear produces a working swing arc of just 5 degrees.
Core is made of chrome vanadium steel,strong and durable.
Quick-release drive tang locks securely on to sockets so they won't accidentally fall off.
Offset handle design with soft, nonslip grip gives fingers extra clearance.