Irwin Tools 12002 Hanson® TR-2E T-Handle Tap Wrench, For Taps 1/4"-1/2"Designed for use with taps, reamers, screw extractors and other tools with a square shank. Adjusted and tightened to size by twisting knurled nut. TR 2E Tap Wrench For Taps 1 4" to 1 2" (6mm to 12mm) Designed for use with taps, reamers, screw extractors and other tools with a square shank Adjusted and tightened to size by twisting knurled nut. WARNING: Some dust created by power sanding sawing grinding drilling and other construction activities