Starrett T-Handle Tap Wrench - Ideal for Holding Taps, Drills, Reamers and Small Tools - 1/4-1/2" Capacity Tap Size, 3-1/2" Body Length, 3/16-5/16" Square Shank - 93C - Threading Tap Extractors - Amazon.com
Amazon.com: 1/2-24 Tap And Die Set, UNF Right Hand Machine Thread Tap and UNS Round Thread Die : Industrial & Scientific
Amazon.com: 1/2-20 Tap And Die Set, UNF Machine Thread Tap And UNF Round Thread Die Right Hand HSS Taper : Industrial & Scientific
Amazon.com: 1/2" - 36 UNEF HSS Machine Tap, Right Hand Thread Tap, Plug Tap : Industrial & Scientific
Volkel 864/018S 1/2-inch BSPF HSS Tap (Set of 3) : Amazon.co.uk: DIY & Tools
General Tools Professional Standard Tap Wrenches #167 - Threading Tools with Reference Table for 0 to 1/2-Inch Taps - Set of 2 - Pipe Taps - Amazon .com