1. The continuous discharge of chips is good
The screw tap has a good effect on the steel material which is tapped in the blind hole and continuously discharged chips.
The cutting speed is 30.5% faster than that of the straight tap. The blind hole has a good high speed tapping effect. Because the chip removal is smooth, the effect of the cast iron chip into fine pieces is poor.
2 Spiral groove taps are mostly used for threading blind holes in CNC machining centers
It was with faster processing speed, high precision, better chip removal and good neutrality.