Table 4 Maximum measured diameter for tests 1E and 3E.

From: Evaluation of chip breaker designs on tool life and hole integrity in drilling of HFRP/Al composite

Test 1E: GT, PVD, 0.08 mm/rev

Test 3E: LM, PVD, 0.08 mm/rev

Hole no

Dmax

Hole no

Dmax

10

14.2

10

14.18

60

14.28

30

14.25

90

14.32

70

14.45

120

14.33

90

14.56