Tap Size: 7/16"-20 UNF thread, 2B thread tolerance grade, left hand thread cutting. Straight flute design, downward chip removal, clear threads, fast tapping with accuracy.. Material and Finish: High-speed steel tool is with high hardness and toughness for wear resistance. Features just the base substrate without any additional coatings, suitable for wide ranges of applications.. Applications: Suitable for processing through holes. Great for drilling and tapping aluminum, die steel, stainless steel, bronze, hard plastics, etc.. Easy to Use: Used on drilling machines, tapping machines, CNC and milling machines. Use with tapping oil to get higher quality threads and more durable taps.. Tips: Machine taps are suggested to be used with tap collets with overload protection. Hand use is easy to cause breakage to the tap due to uneven force. The tapping angle should be 90 degrees vertical and stable..
