Features:
1.Used to sweep and chase rusted threads.
2.Round shank with square end, square end size: 0.65 x 0.65in
3.Packed in a clear plastic case for convinience to organize it and also can extend lifetime.

Note: suggest to use some thread ting oil when chase

Specifications:
Material: HSS(high speed steel)
Color: Titanium
Model: 3/4" NPT
Overall size: 8.2 x 2.6 cm/3.23 x 1.02" (L x W)
Square end size: 1.65 x 1.65cm/0.65 x 0.65" (L x W)
Weight: 229g

Package include:
1 x pipe tap