Mkpọchi isi nke Flex nwere isi ndị na-atụgharị n'ime ihe nkedo ahụ, na-ekwe ka a na-eji eriri ahụ mee ihe n'akụkụ dị iche iche, na-abawanye ohere nke wrench.
A na-eme ihe na-akpali akpali site na isi nke isi ma ọ bụ njedebe nke ogwe. Mwekota na njedebe nke ogwe ahụ na-enye ohere ka isi nwee profaịlụ abụọ.
Ụdị isi wrench niile nwere ike ịnwe nhazi isi na-agbanwe agbanwe. Otu n'ime ihe nrụnye a na-ahụkarị bụ mgbanaka nchikota nwere isi njedebe mepere emepe na isi mgbanaka na-agbanwe agbanwe nwere usoro ratcheting (lee n'okpuru). Kedu ihe bụ igodo nchikota?).
Flex isi na mgbanaka oghere na-ahụkarị. Socket dị ka wrens igbe ma dabara n'elu isi ihe nkedo iji mechie ya kpamkpam mgbe ejiri ya. Wrenches na-akpụ akpụ bụ ihe atụ nke mgbanaka isi oghere na-agbanwe agbanwe (hụ: Gịnị bụ a scaffolding spanner?).
