Loading... Please wait...M.8 / 80UNM Tap Roll form Plug; Shank 0.040" made from hardened high speed steel. Our Roll form taps are designed creat the thread by forming the material rather than cutting, the roll form plug produces no burrs or chips in production taping. Often well suited for materials like aluminum, copper, brass stainless steel in the 300 series, with TiN coating that increases tool performance, pricing base on order to 24 pieces. Image is representative and is not exact item.