The smallest, lowest profile head in the industry!. The quick-disk on the drive head allows for quick tightening or loosening of fasteners when ratcheting is not required. Reversible 48-tooth gear head requires only 7.5 degrees of sweep. Limited lifetime warranty. Patented Worldwide 1/4" hex bit ratchet with 1/4" hex reversible ratchet head and 1/4" hex fixed head for precision tightening. For driving all 1/4" hex bits.