Hole Enlarging Adaptor for Hole Saws CK Tools T3216 Double Threaded Steel Nesting Adaptor
£6.53
Ex. VAT
(over £100+VAT, applies to zone A only , £6 +VAT otherwise)
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The CK Tools T3216 Hole Enlarging Adaptor is a professional accessory designed to enlarge existing holes accurately using two hole saws. Rather than attempting to recut an oversized hole freehand, the adaptor allows one hole saw to be nested inside another, using the existing hole as a guide to produce a perfectly concentric enlarged opening.
Manufactured from durable steel, the T3216 features a double-threaded design that accepts virtually any size of hole saw. It replaces the pilot drill on a standard hole saw arbor, allowing a smaller hole saw to act as the guide while a larger hole saw cuts the new diameter. This makes it an invaluable accessory for electricians, plumbers, maintenance engineers and installers who need to enlarge existing holes neatly without damaging surrounding materials.
Features and Benefits
- Designed for accurately enlarging existing holes
- Allows one hole saw to be nested inside another
- Produces concentric, accurately centred enlarged holes
- Double-threaded design accepts virtually any size of hole saw
- Replaces the pilot drill in a compatible hole saw arbor
- Steel construction for strength and durability
- Eliminates the need for freehand enlarging
- Improves accuracy when modifying existing installations
- Quick and simple to fit
- Suitable for professional trade use
- Compatible with a wide range of hole saw sizes and arbors
Technical Specs
- Manufacturer: CK Tools
- Product Code: T3216
- Product Name: Hole Enlarging Adaptor
- Product Type: Hole Saw Accessory
- Material: Steel
- Construction: Double Threaded
- Function: Hole Enlarging / Nesting Adaptor
- Compatible With: Hole saw arbors
- Accepts: Any size hole saw (double-threaded design)
- EAN: 5013969781014
- Country of Origin: Taiwan
Frequently Asked Questions
What is the CK Tools T3216 used for?
The T3216 is used to enlarge existing holes accurately. It allows a smaller hole saw to be nested inside a larger one so the existing hole acts as a guide, producing a perfectly centred enlarged hole.
How does the adaptor work?
The adaptor replaces the pilot drill in your hole saw arbor. A larger hole saw is fitted to the arbor, while a smaller hole saw is threaded onto the adaptor inside it. The smaller hole saw sits in the existing hole and guides the larger hole saw during cutting.
Can it be used with different hole saw sizes?
Yes. The adaptor features a double-threaded design that allows it to accept virtually any size of compatible hole saw.
Who Needs This Product?
This adaptor is ideal for:
- Electricians
- Plumbers
- Heating and ventilation installers
- Maintenance engineers
- Kitchen and bathroom fitters
- Metal fabricators
- Joiners and carpenters
- Professional DIY users
- Anyone needing to enlarge an existing hole accurately
What Is This Used For?
The CK Tools T3216 is used to enlarge pre-existing holes without losing centre alignment. Typical applications include:
- Enlarging cable gland holes
- Increasing conduit entry sizes
- Modifying electrical enclosures
- Enlarging pipe openings
- Adjusting holes in metal, wood or plastic
- Correcting incorrectly sized holes during installation
- Renovation and maintenance work where existing holes need to be increased
3 Reasons Electricians Recommend This
- Perfect alignment: Uses the existing hole to guide the larger hole saw, ensuring a clean, concentric enlarged hole.
- Saves time: Eliminates the need to replace panels or attempt difficult freehand enlarging.
- Versatile design: The double-threaded adaptor works with virtually any compatible hole saw size, making it a useful addition to any electrician's toolkit.
About CK Tools
CK Tools is one of Britain's leading manufacturers of professional hand tools and power tool accessories, with a heritage spanning more than 100 years. As part of Carl Kammerling International, the company develops products specifically for electricians, plumbers, engineers and construction professionals. Renowned for quality, durability and innovation, CK Tools products are designed to meet the demands of daily trade use and are trusted by professionals throughout the UK and internationally.
About the Range
The CK Tools Hole Saw Accessories range has been developed to improve the versatility and performance of hole saw systems. The collection includes arbors, pilot drills, quick-change systems, extension bars and specialist accessories such as the T3216 Hole Enlarging Adaptor. Designed for professional installers, these accessories help make hole cutting faster, more accurate and more efficient across electrical, plumbing, HVAC and general construction applications.
| Tools Specs | |
| Tool Type | Hole saw |
| Brand | CK Tools |
| Application | Holesaw Drill Centre Pilot Pin Enlarging Adaptor |
| Tool size | 55mm |
| Range | CK HSS Drill Bits |
| Packaging type | |
Note: Some images and pictures are for reference only. The item may differ from the image/picture due to manufacturer's change. Should you require the exact item in the picture, please call or email us to enquire.
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Shipping
Sparks Direct delivers via courier to the UK only; the standard delivery charge is £6 + VAT for all orders under £100 + VAT. If your order is over £120, you get free delivery (unless there's a special delivery charge for the items you wish to order or you're in shipping zone C or D). Full details for shipping charges can be found via Terms and Conditions.
If the items you order are in stock and the order is placed before 1.00pm, delivery can be made within 1-2 working days. If the items are not in stock, we will inform you via email how long it will take or ask for your confirmation if there's a long lead time.
Returns
We offer 30-day returns for unwanted items - please email us to request a returns number which will need to be quoted when the items are returned. For faulty items or items damaged in transit, please advise via email, and an appropriate returns number will be provided. Full details concerning returns and refunds can be found via our Terms and Conditions.
