Core Drill Bit Adapter – 1-1/4" UNC to SDS-Plus/Max Shank
Core Drill Bit Adapter – 1-1/4" UNC to SDS-Plus/Max Shank
Core Drill Bit Adapter – 1-1/4" UNC Thread to SDS-Plus / SDS-Max Shank
Upgrade your hammer drill or rotary drill setup with this heavy-duty Core Drill Bit Adapter. Designed to convert a standard 1-1/4" UNC male thread core bit to fit SDS-Plus or SDS-Max shanks, this adapter makes it simple to use diamond core bits with your existing power tools — no specialist equipment needed.
Key Features
- Universal Compatibility: Fits hammer drills and electric drills equipped with SDS-Plus or SDS-Max chucks.
- Standard Thread Interface: 1-1/4" UNC male thread accepts a wide range of diamond core bits and wet/dry core drilling accessories.
- Durable Construction: Made from high-quality steel for long-lasting performance through demanding drilling applications.
- Convenient Length: 190 mm total length provides excellent reach and clearance during use.
- Secure Fit: Precision-machined thread and shank ensure a stable, wobble-free connection between your bit and drill.
- Versatile Use: Ideal for concrete, brick, stone, and masonry core drilling jobs on construction sites or in workshops.
Specifications
| Thread Size | 1-1/4" UNC (Male) |
| Shank Type | SDS-Plus / SDS-Max (optional) |
| Total Length | 190 mm (approx. 7.5 in) |
| Color | Black |
| Quantity | 1 Piece |
| Country of Origin | Made in China |
What's in the Box?
- 1 × Core Drill Bit Adapter (1-1/4" UNC to SDS-Plus / SDS-Max)
Important Notes
- 1 cm = 10 mm = 0.39 inch. Please allow for slight manual measurement deviation.
- Actual color may vary slightly from product images due to monitor brightness and lighting conditions.
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Frequently Asked Questions
Q: What drill types are compatible with this core drill bit adapter?
A: This core drill bit adapter is compatible with hammer drills and electric drills that feature an SDS-Plus or SDS-Max chuck. Simply select the appropriate shank type (SDS-Plus or SDS-Max) when ordering to match your drill's chuck system.
Q: What core bit thread size does this adapter accept?
A: The adapter accepts standard 1-1/4" UNC male thread core bits, which is the most common thread size used for diamond core bits in concrete, masonry, and stone drilling applications.
Q: What is the total length of this adapter?
A: The adapter has a total length of 190 mm (approximately 7.5 inches), providing adequate reach and clearance for most core drilling setups.
Q: Can this adapter be used for wet core drilling?
A: Yes, the 1-1/4" UNC thread interface is compatible with both wet and dry diamond core bits. However, always verify that your specific core bit is rated for the drilling method you intend to use.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.