

Rothenberger - Extension 1.1/4' UNC 100 mm for core drills - FF35060
€103,69 iva inclusa
2-4 business days
Free shipping with minimum order of €500
- Description
- Reviews
Features of the Rothenberger 1.1/4 UNC Extension
The 1.1/4 UNC 100 mm extension (code FF35060) by Rothenberger is an essential accessory for professionals in the plumbing and construction sectors, and for operators using core drills and drilling systems. Made from high-quality steel, this extension is specifically designed to extend the usable length of diamond core bits during core drilling operations in concrete, reinforced concrete, and other construction materials.
Technical Specifications
The extension features a standard 1.1/4 UNC (Universal Coarse Thread) on both the male and female ends, ensuring compatibility with most professional core drills on the market. With a length of 100 mm, it offers the ideal extension to reach greater depths while maintaining stability and precision during drilling. The 1.1/4 thread diameter (approximately 31.75 mm) ensures a solid and reliable connection with diamond core bits and the core drill chuck.
Operational Advantages
Using the Rothenberger extension offers numerous practical benefits during core drilling operations:
- Increases the achievable drilling depth with standard diamond core bits
- Maintains unchanged power transmission from the motor to the core bit
- Reduces the need to purchase diamond core bits of different lengths
- Facilitates access in confined or hard-to-reach spaces
- Allows overcoming obstacles or irregularities in surfaces to be drilled
Materials and Durability
Constructed from industrial-grade hardened steel, the FF35060 extension is designed to withstand the mechanical stresses and vibrations typical of intensive core drilling operations. The surface treatment protects the component from corrosion and oxidation, ensuring a long lifespan even under harsh working conditions. The precision of the threading ensures a perfect fit, eliminating play and unwanted vibrations that could compromise hole quality or damage the diamond core bit.
Main Applications
The Rothenberger extension is used in numerous professional contexts:
- Installation of plumbing systems and pipelines
- Creating through-holes for electrical cables or pipes
- Building renovation works
- Installation of ventilation systems
- Installation of air conditioning systems
- Civil engineering works
Compatibility with Rothenberger Systems
The 1.1/4 UNC extension integrates perfectly with the entire ecosystem of Rothenberger core drills and diamond core bits, ensuring optimal performance when used with equipment from the same brand. However, thanks to the standardization of the 1.1/4 UNC thread, this accessory is also compatible with most core drilling systems from other manufacturers, offering versatility of use in various working contexts.
Maintenance and Care
To preserve the efficiency and lifespan of the extension, it is recommended to clean it thoroughly after each use, removing dust and debris from the threads. A light layer of lubricant applied periodically to the threads prevents rust formation and facilitates assembly and disassembly. Storing the component in a dry environment, preferably in its original packaging or a protective case, helps maintain its characteristics over time.













