Kulumikizana kwa mphete za GL Cone:
• Kumanga kosavuta kosavuta
• Sichifuna kuthira mafuta kapena kukonza
• Chepetsani kugwedezeka koyambira
• Thandizani kuyamwa kugwedezeka ndikupereka kusinthasintha kwa torsional
• Gwirani ntchito mbali zonse
• Ma halves ophatikizana opangidwa kuchokera ku chitsulo chapamwamba kwambiri.
• Chingwe chilichonse cholumikizira mphete ndi mapini chikhoza kuchotsedwa pochichotsa kupyola theka la chitsamba cholumikizira kuti zitheke kusinthanso mphete zosinthika mukatha ntchito yayitali.
• Imapezeka mumitundu ya MC(Pilot bore) ndi MCT(Taper bore).