Designed to turn taps-tools that cut threads on the inner surface of a hole or pipe or other small tools, such as hand reamers and screw extractors. T-Ratchet can be set for Right or Left hand operation or locked to use the tool without it Wrench features a self-centering hardened steel jaws and knurled chuck sleeve provide positive grip The sliding T-handle fits into tight spaces while providing excellent leverage Designed to turn taps-tools that cut threads on the inner surface of a hole or pipe or other small tools, such as hand reamers and screw extractors. T-Ratchet can be set for Right or Left hand operation or locked to use the tool without it Wrench features a self-centering hardened steel jaws and knurled chuck sleeve provide positive grip The sliding T-handle fits into tight spaces while providing excellent leverage Tap Capacities ; 1/4" to 1/2" ( 6.0 to 12.0 mm)