Handsaw capable of cutting glass bottle, method for manufacturing the same, and method for re-using empty wine bottle

摘要

A handsaw capable of cutting a glass bottle includes a band-like handsaw substrate which is obtained by cutting a steel strip at a predetermined length, a blade portion of hard abrasive applied, by deposition, to at least one edge of the band-like handsaw substrate in the width direction, and a grip portion which allows the band-like handsaw substrate to be manually held. A method for manufacturing a handsaw capable of cutting a glass bottle, and a method for reusing empty wine bottles are also disclosed.