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Core Bits

Diamond Dry and Wet Core Bits

We offer many different types of diamond core bits and drilling options for granite, marble, quartz, porcelain, ceramic, and the new sintered stone such as Dekton and Lapitec.

High Grade Core Bits

The Weha CNC core bits are high grade CNC core bits for use on all CNC machines. Our CNC diamond core bits come with the 1/2 gas thread.

High Speed Core Bits

The dry diamond core bits are high speed diamond core bits for granite, marble, and engineered stone. With diamonds on both the inside and outside of the core, these 5/8-11 threaded high speed diamond core bits will drill a hole in granite in less than 30 seconds.

Wet Diamond Core Bits

Weha also offers the traditional wet diamond core drill bits for shop use. These diamond core bits will drill granite, engineered stone and will drill marble without chipping or blowout.

Weha carries the small diameter diamond non coring bits for anchors, bolts, etc. Please click on one of the diamond core bit options below to see all the sizes and details to fit your fabrication needs.

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2" Granite Core Bit, 2 Quartz Core Bit, Best 1 Granite Core Bit #5373 1 3/4" Granite Core Bit, 1 1/2 Quartz Core Bit, Best 1 Granite Core Bit #5372 1 1/2" Granite Core Bit, 1 1/2 Quartz Core Bit, Best 1 Granite Core Bit #5371
1" Granite Core Bit, 1 1/4 Quartz Core Bit, Best 1 Granite Core Bit #5369 1" Granite Core Bit, 1 Quartz Core Bit, Best 1 Granite Core Bit #5368 1 3/8" Granite Core Bit, 1 3/8 Quartz Core Bit, Best 1 3/8 Granite Core Bit #5370
Best 3" CNC Core Bit, Quartzite Core Bit, Granite CNC Core Bit, Marble CNC Core Bit, Part # 142919 Best 2" CNC Core Bit, Quartzite Core Bit, Granite CNC Core Bit, Marble CNC Core Bit, Part # 142918 4" Quartz Core Bit, Quartz Core Bit, Quartzite Core Bit, Marble Core Bit Part # 142902
3" Quartz Core Bit, Quartz Core Bit, Quartzite Core Bit, Marble Core Bit Part # 1472901 2 3/8" Quartz Core Bit, Quartz Core Bit, Quartzite Core Bit, Marble Core Bit Part # 142900 2" Quartz Core Bit, Quartz Core Bit, Quartzite Core Bit, Marble Core Bit Part # 142899
1 3/4" Quartz Core Bit, Quartz Core Bit, Quartzite Core Bit, Marble Core Bit Part # 142897 1 1/2" Quartz Core Bit, Quartz Core Bit, Quartzite Core Bit, Marble Core Bit Part # 142896 1 1/4" Quartz Core Bit, Quartz Core Bit, Quartzite Core Bit, Marble Core Bit Part # 142895
1" Quartz Core Bit, Quartz Core Bit, Quartzite Core Bit, Marble Core Bit Part # 142893 3/4" Quartz Core Bit, Quartz Core Bit, Quartzite Core Bit, Marble Core Bit Part # 142892 1/2" Quartz Core Bit, Quartz Core Bit, Quartzite Core Bit, Marble Core Bit Part # 142890
3/8" Quartz Core Bit, Quartz Core Bit, Quartzite Core Bit, Marble Core Bit Part # 142889 1/4" Quartz Core Bit, Quartz Core Bit, Quartzite Core Bit, Marble Core Bit Part # 142888 Best 1/2" CNC Core Bit, Quartzite Core Bit, Granite CNC Core Bit, Marble CNC Core Bit, Part # 142887
Best 1 1/4" CNC Core Bit, Quartzite Core Bit, Granite CNC Core Bit, Marble CNC Core Bit, Part # 142883 Best 3 1/2" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142873 Best 3 1/4" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142872
Best 2 3/4" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142870 Best 2 1/2" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142869 Best 2 3/8" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142868
Best 2 1/4" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142867 Best 2" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142866 Best 1 3/8" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142865