ZHEJIANG TIANXIANG TOOLS CO.,LTD is the professional manufacturer of hole saw for more than ten years,we have all kinds of hole saw:carbide tipped wood hole driller,hole saw for wood,hss hole saw,hole saw for glass,carbide tipped wood hole driller.tipped hole saw for metal,bi-metal hole saw,concrete core drill bits.we can offer nice quality and favourable price,if you interested in our products .welcome to contact me.!!