1-3/8″ Core Drill Bit by Inland
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Core Drill 1-1/2″ (38mm) 3/8″ Shank Size by Inland
DIAMOND CORE DRILLS BY INLAND
Diamond-coated Core Drills have a 3/8″ (10mm) shaft and fit most hand drills and drill presses. Numerous diameters make them valuable for drilling a wide range of materials including glass, ceramic, marble, plastic and fiberglass. For best results, core drills larger than 1/2″ should only be used in a drill press.