Optimization and Modeling of Radial Pitch Diameter Difference in Tapping of AISI H13

Table 6

S/N response.

Level	Mean S/N ratio
	A	B	C
1	−23.97	−23.14	−25.13
2	−24.59	−25.69	−23.43
3		−24.01	−24.27
Max-min	0.63	2.55	1.70