Table 5.

Internal holes diameter values.

Measured Hole	Hole Ø 15.1 mm	Hole Ø 15.2 mm	Hole Ø 15.3 mm
Manufacturer	Diameter (mm)	Diameter (mm)	Diameter (mm)
Prusament	15.11 ± 0.02	15.19 ± 0.01	15.29 ± 0.01
Devil Design	15.06 ± 0.04	15.14 ± 0.05	15.24 ± 0.08
Sunlu	15.11 ± 0.10	15.19 ± 0.16	15.29 ± 0.02
C-Tech	15.09 ± 0.06	15.18 ± 0.01	15.27 ± 0.01
Verbatim	15.11 ± 0.02	15.18 ± 0.27	15.27 ± 0.01
Tronxy	15.09 ± 0.08	15.18 ± 0.02	15.26 ± 0.01
Plasty Mladeč	15.11 ± 0.01	15.19 ± 0.06	15.29 ± 0.01
Gembird	15.09 ± 0.01	15.16 ± 0.03	15.27 ± 0.05