Technical Information:

With high quality M2-E material and vacuum heat treatment, taps have higher toughness and durability. Spiral groove tap, more suitable for processing blank (blind hole) threads, cutting iron pin to discharge back. Because of the helix angle, the actual cutting angle of the tap increases with the increase of the helix angle. Experience tells us that the processing of ferrous metal taps, spiral angle selection is a little smaller, generally around 30 degrees, to ensure the strength of spiral teeth. For processing non-ferrous metals, the larger helix angle can be around 45 degrees, and the cutting will be sharper. When tapping with spiral groove tap, the iron pin can be easily discharged out of the hole by its spiral groove's rising and rotating function, so as to avoid the residual iron pin or plugging in the groove after tapping, and cause the broken edge of the spiral groove to crack, thus increasing the life of the tap and cutting out the highest precision thread.

The screw tap is suitable for cutting high toughness materials, and selecting different helix angles for different materials.

1. precision H2

2. attack blind holes

3. M6-M2 specification tap, end face is convex center.

4. M8 above specification tap, end face flat head.

5, add cutting fluid to assist cutting.