7.3硬質合金頭901312M2.5*0.457.3硬質合金頭901454#4-48UNF7.3鋼900030M2.5*0.457.3塑料901994M2.5*0.457.3塑料902018#4-48UNF7.3紅寶石120047M2.5*0.458.3硬質合金頭902119M2.5*0.458.3鋼900986M2.5*0.4515硬質合金頭120049M2.5*0.4515紅寶石120051M2.5*0.4520硬質合金頭137391M2.5*0.4520紅寶石137392M2.5*0.4525硬質合金頭120053M2.5*0.4525紅寶石120055M2.5*0.45