APPROXIMATE INCREASE IN
KNURLED DIAMETERS
Using Form Rol Circular or Diametral Pitch Knurls
	Tooth			Diamond
TPI	Angle	Straight	Diagonal	Male	Female
12	90°	0.034	0.034	0.038
16		0.025	0.025	0.029
20		0.02	0.02	0.023	0.014
25		0.016	0.016	0.018	0.011
30		0.013	0.013	0.015	0.009
35		0.011	0.011	0.013
40		0.009	0.009	0.01	0.006
35	70°	0.014
40		0.012	0.01
50		0.009	0.009	0.01	0.006
60		0.007	0.007
70		0.006	0.006
80		0.005	0.005
Diametral	Tooth
Pitch	Angle	Straight	Diagonal
64	80°	0.024	0.021
96		0.016	0.014
128		0.012	0.01
160		0.009	0.008