The Dynamic Tools 108-Tooth Ratchets are industrial-quality ratchets designed for budget-sensitive professionals. Featuring a 108-tooth gear with 3.5-degree arc swing, the ratchets have a nickel-plate mirror chrome finish for maximum corrosion resistance. A secure socket lock keeps sockets firmly installed until ejected via the quick-release button. A convenient thumb-operated reverse switch mechanism easily changes between tightening and loosening operation. The sleek, comfortable handle is user friendly, while the low-profile head provides ideal access in confined spaces. The ratchets are available in 1/4", 3/8", and 1/2" drive, or can be purchased as a set of three (No. D001309).