Aopin 4-40 UNC Taper Hand Tap HSS Female Thread High Speed Steel Hand/Machine Use Straight Flute Screw Tap, Suitable For Used To Make New Threads, Re-Thread Damaged And Jammed Threads 1 Pcs - Aopin-Hardware

• UPC   658099110928
• Taper Tap Thread Size: 4-40 UNC. Class: 2B, Thread Per Inch: 40, Material: High Speed Steel (HSS). Our hand tap is suitable for through-holes and can be used with tapping wrenches to tap new female threads, re-thread damaged or jammed threads. Standard coarse thread design. Machine taps material: The taps is made of high hardness high speed steel. It is suitable for tapping on the machine tool and can also be tapped by hand. Good red hardness and wear resistance. Cutter bit is not easy to break. The tapping speed is fast, the high precision and good chip removal. Taper Style: Starts the thread square with the workpiece. Features: Three rows of straight grooves, good chip removal effect, sharp teeth without burrs and high strength, end is square handle style, convenient for firm clamping to tool, round drill bits design. Straight flute tools allow chips to collect in the flutes as they cut. Designed for hand cutting plastic, copper, brass, aluminum, sheet metal and other materials applications. Easy to use: When tapping, every 1/2 or 1 turn of the twister should be turned, it should be reversed about 1/2 turn, so that the chips are easy to be discharged after breakingand. Thereby avoiding the stuck of taper taps due to the blockage of cutting edge. During this process, it is advisable to add coolant at the same time, and do not touch the cutting edge with your hands directly to avoid scratches.