Feature●【Size】Length: 4.65"/118mm, Thread Head: 0.98"/25mm, Square Head: 12.5mm x 12.5mm (L*W), Shank Diameter:16.0mm, Pitch: 18 TPI.●【Feature】Standard thread design, made of High-speed steel with high hardness and toughness, provide rapid chip removal for efficient threading.●【Application】Make or repair thread, suitable for most metals, copper, alloy steel, cast iron, aluminum, brass, abrasive steel, A3 steel, iron plate ETC.●【Usage】Can be used with manual equipment or special processing consoles for tapping, Appropriate addition of coolant can extend the service life when tapping.●【Package Included】1pc 7/8-18 UN Right Hand Thread Tap.Description