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Ubukhulu obuthile obuhambisanayo bumi kanje:
I-An4: ububanzi bangaphakathi = 5.56mm, ububanzi bangaphandle = 11.18mm;
I-An6: ububanzi bangaphakathi = 8.7mm, ububanzi bangaphandle = 13.97mm;
I-An8: ububanzi bangaphakathi = 11.11mm, ububanzi bangaphandle = 16.26mm;
I-An10: ububanzi bangaphakathi = 14.2mm, ububanzi bangaphandle = 20.32mm;
I-An12: ububanzi bangaphakathi = 17.46mm, ububanzi bangaphandle = 23.50mm;
I-An16: ububanzi bangaphakathi = 22.23mm
Qaphela: ngenxa yokuthi ishubhu elingaphakathi liyishubhu lerabha le-NBR nokunwebeka, kuvamile ukuthi idatha elinganisiwe ibe nokubekezelela okuthile (Ngisho nemikhiqizo yensimbi esetshenziswa kumarokhethi asemkhathini inokubekezelelana, sicela uqonde).
Bona i-ID yekholomu kuthebula elilandelayo ukuze uthole imininingwane (iyunithi ye-ID yekholomu iyiyintshi, futhi uma iguqulelwa kusistimu yemethrikhi, idinga * 25.4mm, okuyidatha yemethrikhi ngenhla)