OSG Spiral Point Tap, Series: A Brand® A-POT 16515, Measurement System: Imperial, UNC, 1/2-13, 3.5P-4.5P Plug Chamfer, 3 Flutes, VC-10, V-Coated, Right Hand Cutting, 0.921 in Thread Length, 4.33 in Overall Length, 0.367 in Shank Dia, Steel, Stainless Steel, Aluminum and Heat-Resistant Alloys Material Application, H5 Thread Limit, No Through Coolant (Yes/No)