Quick-release button allows sockets and accessories to be easily removed from the ratchet. 100-Tooth ratchet can access spaces 40% tighter vs. a 60-tooth ratchet. The 100-tooth internal ratcheting mechanism allows for a fine 3.6° swing arc. Teardrop, low-profile head to allow better access in tight spaces. One finger flush-mounted switch on the back of the ratchet head for effortless direction change. Meets or exceeds ANSI standards. Comes in an EVA foam storage tray for easy organization. Set includes: 1/4", 3/8", and 1/2" Ratchet.