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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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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
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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 1/2" Quartz Core Bit, Quartz Core Bit, Quartzite Core Bit, Marble Core Bit Part # 142900
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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
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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
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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
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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
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Best 3 1/4" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142872 Best 3" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142871 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 Best  1 1/2" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142864



Best 1 1 /4" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142863 Best 1 3/8" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142862 Best 1" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142861



Best 3/4" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142860 Best 1/2" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142859 Best 3/8" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142858



Best 5/16" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142857 Best 1/4" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142853 Best 3/16" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 142852



Best 3" CNC Dekton Core Bit, Lapitec Core Bit, Neolith CNC Core Bit, Porcelain Core Bit, Part # 142851 Best 2 1/2" CNC Dekton Core Bit, Lapitec Core Bit, Neolith CNC Core Bit, Porcelain Core Bit, Part # 142849 Best 2" CNC Dekton Core Bit, Lapitec Core Bit, Neolith CNC Core Bit, Porcelain Core Bit, Part # 142848
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Best 1 1/2" CNC Dekton Core Bit, Lapitec Core Bit, Neolith CNC Core Bit, Porcelain Core Bit, Part # 142846 Best 1 1 /4" CNC Dekton Core Bit, Lapitec Core Bit, Neolith CNC Core Bit, Porcelain Core Bit, Part # 142845 Best 1" CNC Dekton Core Bit, Lapitec Core Bit, Neolith CNC Core Bit, Porcelain Core Bit, Part # 142844
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Best 1 3/4" CNC Core Bit, Quartzite Core Bit, Granite CNC Core Bit, Marble CNC Core Bit, Part # 140820 Best 1 3/8" CNC Dekton Core Bit, Lapitec Core Bit, Neolith CNC Core Bit, Porcelain Core Bit, Part # 139192 1 3/8" Quartz Core Bit, Quartz Core Bit, Quartzite Core Bit, Marble Core Bit Part # 139132
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14mm 1/2 Gas cnc Core bit Best 1 3/8" CNC Core Bit, Quartzite Core Bit, Granite CNC Core Bit, Marble CNC Core Bit, Part # 139329 Best 1 3/8" Dekton Core Bit, Lapitec Core Bit, Neolith Core Bit, Porcelain Core Bit, Part # 139193
14mm 1/2 Gas cnc Core bit
Weha Price: $101.80
14mm 1/2 Gas CNC Core Bit
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Weha Dry Magic 1 3/4" 45mm Vacuum Brazed Core Bit #134498 1/2" 12mm Vacuum Brazed Core Bit, Dry Magic, Porcelain Core Bit, Ceramic Dry Core Drill Part #125539 135630 3/8" 10mm Vacuum Brazed Core Bit, Dry Magic, Porcelain Core Bit, Ceramic Dry Core Drill Part #125538 135629
3/8" 10mm Dry Magic Core Bi
Weha Price: $30.60

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5/16" 8mm Vacuum Brazed Core Bit, Dry Magic, Porcelain Core Bit, Ceramic Dry Core Drill Part #125535 1/4"-6mm Vacuum Brazed Core Bit, Dry Magic, Porcelain Core Bit, Ceramic Dry Core Drill Part #125535 135627 Adapter, M14 tp 5/8-11,  Part # 4525
5/16" 8mm Dry Magic Core Bi
Weha Price: $22.18

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9/16" Ceramic Drill Bit, 9/16" Porcelain Drill Bit, 9/16" Diamond Drill Bit Weha Dry Magic 9/16" 14mm Hex Core bitPart # 121865 1/2" Ceramic Drill Bit, 1/2" Porcelain Core Drill Bit, 1/2" Diamond Drill Bit, Dry Magic 1/2" 12mm Hex Core bit part # 125526 3/8" Ceramic Core Drill Bit, 3/8" Porcelain Core Drill Bit, Dry Magic 3/8" 10mm Hex Diamond Core bit Part # 121845
9/16" Dry Magic Core Bit
Weha Price: $24.54
1/2" Dry Magic Core Bit
Weha Price: $18.96
3/8" Dry Magic Core Bit
Weha Price: $22.19
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Ceramic Core Drill Bit, Porcelain Core Drill Bit, Granite Core Drill Bit, 5/16" 8mm Hex Core bit Part # 121813 Dry Diamond Core Drill Bit, Ceramic Core Drill Bit, Granite Core Bit 1/4" 6mm Hex Core bits Part # 121812 9/16" 14mm Vacuum Brazed Core Bit, Dry Magic, Porcelain Core Bit, Ceramic Dry Core Drill Part #125540
5/16" Dry Magic Core Bit
Weha Price: $23.21
1/4" Dry Magic Core Bit
Weha Price: $25.58
9/16" 14mm Dry Magic Core
Weha Price: $34.68
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2 3/8" Ceramic Core Bit, Porcelain Core Bit, Dry Diamond Core Drill Part # 134500 Weha Dry Magic 2"-50mm Vacuum Brazed Core Bit #134499 Weha Dry Magic 1 1/2"-40mm Vacuum Brazed Core Bit #134498
2" (50mm) Dry Magic Vacuum
Weha Price: $58.38
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1 3/8"-35mm Vacuum Brazed Core Bit, Dekton Core Bit, Porcelain Core Bit, Ceramic Dry Core Drill Part #134495 Weha Dry Magic 1 1/4"-32mm Vacuum Brazed Core Bit #134493 1"-25mm Vacuum Brazed Core Bit, Dry Magic, Porcelain Core Bit, Ceramic Dry Core Drillit #134491
1" (25mm) Dry Magic Vacuum
Weha Price: $38.26
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3/4"-20mm Vacuum Brazed Core Bit, Dry Magic, Porcelain Core Bit, Ceramic Dry Core Drill Part #134489 ½" shaftx 5/8-11 thread  Part # 70149 Adapter, 5/8-11 to M14,  Part # 4523
1/2" shaftx 5/8-11 thread
Weha Price: $11.38
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Ceramic Core Bit, Porcelain Core Drill, Lapitec Bit, Dekton Core Drill, 2 1/2 Part # PCD65 Ceramic Core Bit, Porcelain Core Drill, Lapitec Bit, Dekton Core Drill, 3 Part # PCD75 Ceramic Core Bit, Porcelain Core Drill, Lapitec Bit, Dekton Core Drill, Part # PCD50
Weha Ceramica 2 1/2" Core Bi
Weha Price: $124.44
Weha Ceramica 3" Core Bit
Weha Price: $135.66
Weha Ceramica 2" Core Bit
Weha Price: $108.12
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Ceramic Core Bit, Porcelain Core Drill, Lapitec Bit, Dekton Core Drill, 4 Part # PCD100 Ceramic Core Bit, Porcelain Core Drill, Lapitec Bit, Dekton Core Drill, 4 3/4 Part # PCD120 Ceramic Core Bit, Porcelain Core Drill, Lapitec Bit, Dekton Core Drill, 1 1/2 Part # PCD38
Weha Ceramica 4" Core Bit
Weha Price: $212.16
Weha Ceramica 4 3/4" Core Bi
Weha Price: $277.44
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