Irbadda saddex-geesoodka ah waa nooca ugu badan ee la isticmaalo waxayna leedahay qayb isdhaafsi ah oo ka mid ah saddexagalka isosceles kaas oo u adkeysan kara dhammaan jihooyinka dhererka, sidaas darteed natiijooyin wanaagsan ayaa lagu gaari karaa inta lagu jiro daloolinta.
Kala duwanaanshaha xulashada
• Cabbirka irbadda: 18, 20, 23, 25, 32, 36, 38, 40, 42
• Dhererka irbadda: 3 "3.5" 4" 4.5" 4.8" 6"
• Qaabka Barb: GBFL GB LB
• Qaababka kale ee qaybaha shaqada, lambarka mashiinka, qaabka barb iyo dhererka irbadda waa la habeyn karaa