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 Worldwide1/4 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.