Hy-Pro Industrial GH5 HSS 4-flute straight plug tap in black oxide is a high-speed steel tool designed to cut internal threads. It features a 1-3/8 in. diameter with 12 UNF threads per inch and a 4-flute straight plug design (GH5) for efficient cutting and chip control. The black oxide finish provides corrosion resistance and is suitable for producing precise internal threads in metal workpieces requiring the 12 UNF specification.
