Connects an 88mm diamond core drill bit to a standard hex chuck drill. A straightforward adaptor that saves you swapping machines on site. Solid, dependable, and priced so you can keep a spare in the bag.
The 88mm diamond core hex chuck adaptor does one job and does it well. It bridges the gap between your 88mm core drill bit and a standard hex chuck driver, so you are not hunting around for a dedicated core drill machine every time you need to cut a hole. If you have ever stood on site holding a perfectly good core bit and a perfectly good drill with no way to connect the two, this is the part you were missing.
Core drilling comes up constantly in the trades. Plumbers running 88mm waste pipes through walls, electricians chasing through blockwork, HVAC engineers making duct penetrations — it is one of those jobs that sounds straightforward until you realise your setup is not configured correctly. The 88mm diamond core hex chuck adaptor puts that right immediately. Fit the adaptor, connect the core bit, and you are cutting. No drama.
Where the 88mm Diamond Core Hex Chuck Adaptor Earns Its Place
Most tradespeople carrying diamond core bits already own a decent hammer drill or SDS machine with a hex chuck attachment. This adaptor means that machine can drive an 88mm core bit without any additional investment in specialist equipment. It is the kind of small part that costs very little but removes a genuine obstacle on the job.
It is also worth keeping a spare. At under four pounds, losing one down a floor void or leaving it in the last van is not the end of the world. Buy two, put one in the core bit case and forget about it until you need it. Problem solved before it starts.
Designed to fit standard hex chuck configurations, this adaptor is a practical addition to any core drilling kit. Whether you are a regular core driller or only pull the 88mm bit out occasionally, having the right adaptor to hand means the job does not stall over a missing connector.
Pro Tip: Always check the adaptor is fully seated and locked before starting the core — a partially engaged hex connection under load will chew out the fitting and leave you with a frustrating wobble mid-cut.
Used wherever an 88mm diamond core bit needs to be driven by a hex chuck drill or driver. Common applications include cutting through brick, block, concrete and masonry for waste pipe penetrations, soil pipe runs, electrical conduit entry points, and ventilation duct holes. Widely used by plumbers, electricians, and general builders on both new build and refurbishment projects.
Best For
Connecting 88mm core bits to hex chuck drills
Plumbing pipe penetrations through masonry
Electrical conduit entry points
Ventilation and HVAC duct holes
Refurbishment and new build site work
Compatible With
Standard hex chuck drills and drivers
88mm diamond core drill bits
Brick, block and concrete core drilling
Key Features
88mm core bit connection
Standard hex chuck interface
Compact and lightweight
Simple push-and-lock fitment
Low cost — practical to keep a spare
Not suitable for: Not suitable for SDS-plus or SDS-max direct connection without an appropriate intermediate adaptor. Not designed for core bits larger or smaller than 88mm.
Fit the hex shank end of the adaptor into your drill chuck and tighten securely. Attach the 88mm diamond core bit to the threaded end of the adaptor, ensuring it is fully engaged. Check everything is locked before applying power. Run the drill at an appropriate speed for the core bit size and material being cut, keeping steady pressure throughout.
Insert the hex shank of the adaptor into the drill chuck and tighten fully
Thread the 88mm diamond core bit onto the adaptor and tighten by hand until secure
Double-check both connections are firm before switching the drill on
Mark the hole position on the surface and position the core bit pilot tip accurately
Start drilling at a low speed to establish the cut, then increase to a steady working speed
Apply consistent pressure and allow the core bit to do the work — do not force it
Withdraw the bit periodically to clear debris and prevent overheating
Will this adaptor work with any standard hex chuck drill?
Yes, it is designed to fit standard hex chuck drills and drivers. As long as your drill accepts a standard hex shank fitting, the adaptor will connect correctly.
Can I use this adaptor with a hammer drill setting?
For most masonry core drilling you would use rotation only, not hammer action. Hammer mode through a core bit can damage both the bit and the adaptor, and is generally not recommended for diamond core work.
Is this adaptor compatible with all 88mm diamond core bits?
It is designed for standard 88mm diamond core bits with the appropriate thread connection. If your core bit uses a non-standard or proprietary fitting, check the thread specification before ordering.
The 88mm diamond core hex chuck adaptor is a machined steel connector designed to interface a standard hex chuck drill with an 88mm diameter diamond core bit. It provides a secure rotational drive connection suitable for core drilling through brick, block and concrete. The hex shank conforms to standard chuck specifications used across most corded and cordless drill platforms.
Core Bit Size
88mm
Chuck Interface
Standard Hex
Material
Steel
Product Type
Diamond Core Adaptor
SKU
DCA-HEX
Product Type
Diamond Core Adaptors
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