K kwokker 15pcs masonry drill bits set 3mm to 16mm for glass concrete marble plastic brick tile wood and cement tungsten carbide paddle shaped tip triangle alloy professional masonry bit 4 2 out of 5 stars 70 19 77 19 77 get it as soon as thu may 7.
Marble hole drill bit.
Marble core bits are a hollow cylindrical bit that is the cutting part of a core drill.
These core bits are made up of a concentration of diamonds and metal bonds in order to cut the hard surface of the granite.
Yotino 15pcs diamond drill bit set 0 24inch 6mm small diamond hole saw set hollow core drill bit set for glass ceramics porcelain ceramic tile marble 3 9 out of 5 stars 116 9 99 9.
Sunjoyco diamond drill bits 30 pcs glass hole saw drill bit set cutting remover tools for glass porcelain tile ceramic marble granite bottles diy 6mm 50mm 4 1 out of 5 stars 208 18 99 18.
Rather than relying on channel action like normal bits core bits have a central pilot bit that holds the bit in place while the outer sections of the bit cuts a hole through stone.