Diamond Core Bits

Diamond core drill bits are primarly for heavy stone drilling, while carbide drill bits are for masonry work. For drilling in ceramics or tile, use our diamond tile bits to get the cleanest hole possible (though a fresh carbide bit will do an accepable job in most applications). Like anything else, you get what you pay for when it comes to carbide or diamond bits. And for those of your who've ever pondered what part of China lies directly under your home, we stock up to 16 inch diameter diamond core bits. They're about as long lasting as any diamond drill bit we've seen (though you may need more than one to make it to China).