Ngwa miter bụ ngwa bevel ejiri na-ebunye ike n'etiti osisi ndị na-ezute n'ogo ogo 90.Ha na-egosipụta ezé kwụ ọtọ nke na-etinye aka na ogo ogo 45 maka ịnyefe ike dị mma na nke dị nro.Otu n'ime ihe e ji mara igwe miter bụ na ha nwere ike ibunye ike n'akụkụ ziri ezi, nke mere na a na-ejikarị ha eme ihe na igwe nwere anyụike gafere.