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:
Concrete, brick, block, and masonry
Ceramic tiles, granite, and marble (with diamond-tipped versions)
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?
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
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?
Diameter and depth – match the size to your application (e.g. 25 mm–150 mm for plumbing/electrical work)
Connection type – SDS-Plus, SDS-Max, or ½″ BSP threads depending on your drill
Material type –
Segmented diamond bits for concrete and stone
Continuous rim bits for tile and ceramics (smoother edges)
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.
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:
Concrete, brick, block, and masonry
Ceramic tiles, granite, and marble (with diamond-tipped versions)
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?
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
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?
Diameter and depth – match the size to your application (e.g. 25 mm–150 mm for plumbing/electrical work)
Connection type – SDS-Plus, SDS-Max, or ½″ BSP threads depending on your drill
Material type –
Segmented diamond bits for concrete and stone
Continuous rim bits for tile and ceramics (smoother edges)
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.
38mm Diamond Core Bit Core diameter: Ø38mmMain use: Tiles The diamond core bit is used to drill holes in: Ceramic tiles Marble Grade 5 por...
View full details25mm Diamond Core Bit Core diameter: 25mmMain use: Tiles The diamond core bit is used to drill holes in: Ceramic tiles Marble Grade 5 porcelain (...
View full details12mm Diamond Core Bit Core diameter: Ø12mmMain use: Tiles The diamond core bit is used to drill holes in: Ceramic tiles Marble Grade 5...
View full details10mm 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 detailsTCT Core bits - DIY/Economy (M22) For drilling into general masonry, no hammer action needed
TCT Core bits - DIY/Economy (M22) For drilling into general masonry, no hammer action needed
Fast drilling into all types of tiles: Porcelain, ceramics, and natural stone Fits 13mm chuck drill Use with water
100mm Diamond Core Bit with Hex Shank for Tiles
Pilot drill for hollow core bit This is a replacement pilot drill bit for the TC322 range of hollow core bits Always use a pilot drill bit wi...
View full detailsTCT hollow core bit Core diameter: Ø50mmDepth: 150mmAdaptor thread: M22 The hollow core bits are designed to be used with rotary hammers. It ...
View full details64mm 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 details32mm Diamond Core Bit Core diameter: Ø32mmMain use: Tiles The diamond core bit is used to drill holes in: Ceramic tiles Marble Grade 5 por...
View full details20mm Diamond Core Bit Core diameter: 20mmMain use: Tiles The diamond core bit is used to drill holes in: Ceramic tiles Marble Grade 5 porc...
View full detailsDiamond Core Bit Core diameter: Ø75mmDepth: 170mmAdaptor thread: M22Main use: Concrete The dry cut diamond core drill is designed to be used wi...
View full detailsSDS-max Adaptor Adaptor length: 400mmThread: M22Connection type: SDS-max This is an SDS-max adaptor to connect the TCT hollow core bit to you...
View full detailsSDS-plus Adaptor Adaptor length: 200mmThread: M22Connection type: SDS-plus This is an SDS-plus adaptor to connect the TCT hollow core bit to yo...
View full detailsSDS-plus Adapter 200mm X M16 for TCT Core Bits
SDS-plus Adaptor for Diamond Core Bits Adaptor length: 200mmThread: M16Connection type: SDS-plus This is a SDS-plus adaptor to connect the Dry Cu...
View full details16mm Diamond Core Bit Core diameter: 16mmMain use: Tiles The diamond core bit is used to drill holes in: Ceramic tiles Marble Grade 5 porc...
View full details15mm Diamond Core Bit Core diameter: Ø15mmMain use: Tiles The diamond core bit is used to drill holes in: Ceramic tiles Marble Grade 5 por...
View full detailsTCT Core bits - DIY/Economy (M22) For drilling into general masonry, no hammer action needed
TCT Core bits - DIY/Economy (M22) For drilling into general masonry, no hammer action needed
TCT Core bits - DIY/Economy (M22) For drilling into general masonry, no hammer action needed
Dry Core Pilot Bit 230mm Pilot Bit for Dry Core Drilling