1/4 inch Drive 72 Teeth 72 teeth gives a working arc of just 5 degrees Flexible head More teeth are engaged simultaneously which creates greater torque/strenght without the mechanism failing The rotation disc, to change ratchet direction, has grooves for increased grip in oily environments or when wearing gloves Sealed ratchet head, prevents dirt and dust entering the mechanism, giving longer life and trouble free use Slim design for access to confined spaces Bi-material handle with ergonomic design for Anti slip and comfort especially in cold environments All individual parts and service kits are available and easy to fit