Core & Diamond Core Bits & Accessories
Core bits cut cylindrical holes in concrete, masonry and tile. Diamond core bits use embedded industrial diamonds to grind through hard materials while producing minimal dust.
What are core and diamond core bits used for?
Core bits are designed to drill large, clean holes by removing a core of material rather than pulverizing the entire area. They’re used for:
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Concrete, brick, block, and masonry
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Ceramic tiles, granite, and marble (with diamond-tipped versions)
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Creating access points for plumbing, electrical conduits, HVAC ducts, and extractor fans
Diamond core bits are ideal for hard, abrasive materials and offer precision with minimal vibration.
What’s the difference between dry and wet diamond core bits?
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Dry core bits are used with standard rotary drills and are often vacuum brazed or laser-welded, designed for materials like brick or block without water cooling
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Wet core bits use water as a coolant and dust suppressor, ideal for reinforced concrete, granite, and tile, and require slower RPM tools like rotary drills or rigs
Using the correct type extends tool life, improves efficiency, and protects the material from cracking due to overheating.
What should I consider when choosing a core bit?
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Diameter and depth – match the size to your application (e.g. 25 mm–150 mm for plumbing/electrical work)
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Connection type – SDS-Plus, SDS-Max, or ½″ BSP threads depending on your drill
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Material type –
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Segmented diamond bits for concrete and stone
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Continuous rim bits for tile and ceramics (smoother edges)
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Tungsten carbide core bits for general masonry
Always check your drill’s power and clutch rating; core bits should be used with high-torque, low-speed drills, preferably with safety clutches.
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Filters
Tool-Co | Tungsten Carbide M22 Core Drill Bit 50mm | TCTBB050P
Tool-CoTCT Core bits - DIY/Economy (M22) For drilling into general masonry, no hammer action needed
Tool-Co | Dry Core Drift, Key Only
Tool-CoDry Core Drift Key Use with either Hex or SDS adaptor to release the Guide Rod or A-Taper pilot drill bit from the adaptor NB: Image at lef...
View full detailsTool-Co | Core Drill Bit 6mm | CLZG006P
Tool-CoFast drilling into all types of tiles: Porcelain, ceramics, and natural stone Fits 10mm chuck drill Use with water
Metabo | HSS Core Drill 31 X 30mm
METABO31 X 30mm HSS Core Drill With Weldon shank 19 mm (3/4") Insert only with suitable centring pin Suitable for steel, cast steel, non-fe...
View full detailsTool-Co | Core Bit TCT 80mm M22
Tool-CoDIY/Economy Tungsten M22 Core Bits For drilling into general masonry No hammer action needed
Tork Craft | Pilot Drill Bit for 18 Diamond Core Bits
Tork CraftDiamond Core Pilot Drill Bit The pilot drill is used with the Dry Cut Diamond Core Drills The shank of the pilot drill is tapered and it fits...
View full detailsTork Craft | Drill Bit Pilot Taper Shank for Core Bits Long
Tork CraftPilot drill bit with taper shank for Long Core Bits
Tork Craft | Drift Key For 8 Diamond Core Bits
Tork CraftDrift key The Drift key is a wedge used to remove the pilot drill from the Dry Cut Diamond Core Drill adaptor with a hammer. See illustration be...
View full detailsTork Craft | Diamond Core Bit 76mm for Tiles Hex Shank
Tork Craft76mm Diamond Core Bit The diamond core bit is used to drill holes in: Ceramic tiles Marble Grade 5 porcelain (hardest) Granite Glass Sla...
View full detailsTork Craft | Diamond Core Bit 57mm for Tiles
Tork CraftDiamond Core Bit The diamond core bit is used to drill holes in: Ceramic tiles Marble Grade 5 porcelain (hardest) Granite Glass Slate ...
View full detailsTork Craft | Diamond Core Bit 22mm for Tiles
Tork Craft22mm Diamond Core Bit Core diameter: Ø22mmMain use: Tiles The diamond core bit is used to drill holes in: Ceramic tiles Marble Grade 5 por...
View full detailsTork Craft | Diamond Core Bit 19mm for Tiles
Tork Craft19mm Diamond Core Bit Core diameter: Ø19mmMain use: Tiles The diamond core bit is used to drill holes in: Ceramic tiles Marble Grade 5 por...
View full detailsTork Craft | Adaptor SDS-plus 300mm X M22 for Diamond Core Bits
Tork CraftSDS-plus Adaptor for Diamond Core Bits Adaptor length: 300mmThread: M22Connection type: SDS-plus This is a SDS-plus adaptor to connect the Dr...
View full detailsTork Craft | Adaptor SDS-plus 200mm X M22 for Diamond Core Bits
Tork CraftSDS-plus Adaptor for Diamond Core Bits Adaptor length: 200mmThread: M22Connection type: SDS-plus This is a SDS-plus adaptor to connect the Dr...
View full detailsTool-Co | Diamond Core Drill 40mm M14
Tool-CoFor wet drilling of all natural stone, engineered stone and all types of tiles including porcelain tiles Very good cutting speed Must ...
View full detailsTool-Co | Diamond Core Drill 32mm M14
Tool-CoFor wet drilling of all natural stone, engineered stone and all types of tiles including porcelain tiles Very good cutting speed Must use with a...
View full detailsTool-Co | Diamond Core Drill 25mm M14
Tool-CoFor wet drilling of all natural stone, engineered stone and all types of tiles including porcelain tiles Very good cutting speed Must ...
View full detailsTool-Co | Diamond Core Drill 20mm M14
Tool-CoFor wet drilling of all natural stone, engineered stone and all types of tiles including porcelain tiles Very good cutting speed Must ...
View full detailsTool-Co | Core Drill Bit 5mm | CLZG005P
Tool-CoFast drilling into all types of tiles: Porcelain, ceramics, and natural stone Fits 16mm chuck drill Use with water
Tool-Co | Core Drill Bit 8mm | LZG008P
Tool-CoFast drilling into all types of tiles: Porcelain, ceramics, and natural stone Fits 10mm chuck drill Use with water
Tool-Co | Core Drill Bit 10mm
Tool-CoFast drilling into all types of tiles: Porcelain, ceramics, and natural stone Fits 10mm chuck drill Use with water