Bosch Drill Bits - 4.0X50X90mm
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Product Information
Full details
The Bosch CYL-5 Drill Bit (4.0X50X90mm) is designed for professionals and serious DIYers who need exceptional durability when drilling concrete and stone. Its key benefit is extreme wear resistance, ensuring a longer lifespan and consistent performance, though it's optimized for impact drills and may not be ideal for lighter rotary-only applications. Key features include a special carbide blend, diamond-ground cutting edges, a 2-flute vario design for efficient dust removal, and the Bosch Power Grip Shank System for maximum power transfer.
All features
| Model Part Number | 4.0X50X90mm |
|---|---|
| Brand | Bosch |
Extended Product Information
FAQs
What is the primary application for this drill bit?
The Bosch CYL-5 Drill Bit is designed for drilling holes for fixings in concrete, natural stone, and artificial stone, especially when durability and wear resistance are paramount.
Can I use this bit with a regular drill (no hammer function)?
While it will fit and may drill softer materials slowly, it is optimized for use with the hammer action of an impact drill for efficient drilling in concrete and stone. Performance will be significantly reduced in rotary-only mode.
How does the 2-flute vario design help?
This design aids in efficient dust removal from the hole, which reduces friction on the flutes, lowers wear on the bit, and helps prevent the bit from overheating.
What does the PGM quality mark signify?
The PGM (Prüfgemeinschaft für Mauerbohrer) mark indicates that the drill bit has passed rigorous testing for quality, compliance with tight tolerances, and the ability to produce exactly drilled holes for a firm fixing hold.
What size is this specific drill bit?
This specific model is 4.0mm in diameter, with a 50mm working length and a 90mm overall length.
How do I ensure maximum power transfer?
The Bosch Power Grip Shank System is designed for this. Ensure the bit is securely clamped in the drill chuck and that the drill's chuck is in good condition.
What is the lifespan of this drill bit?
The lifespan varies greatly depending on the material hardness, drilling technique, and frequency of use. However, its advanced carbide blend and wear-resistant design provide significantly longer durability compared to standard bits in demanding applications.
Troubleshooting
Drill bit not cutting effectively
Ensure the drill is set to 'hammer' or 'impact' mode. Check if the drill bit is properly secured in the chuck and if the material being drilled is within the bit's intended use (concrete, stone). The bit may also be worn and require replacement.
Excessive heat buildup
This can indicate insufficient dust removal or too much pressure. Allow the bit to cool periodically and ensure the flutes are clear of debris. Reduce drilling pressure slightly and let the drill's hammer action do the work.
Drill bit wobbles or feels loose
Re-tighten the drill bit in the chuck. Ensure the shank is clean and fully inserted. If the chuck itself is worn, it may need servicing or replacement.
Pros and Cons
Pros
- Exceptional durability and wear resistance for long tool life.
- Efficient dust removal design prolongs bit life and maintains performance.
- Direct power transfer maximizes drilling efficiency.
- Certified quality ensures precise results and reliable fixing.
- Suitable for a wide range of masonry materials.
Cons
- Primarily designed for impact drills; performance may be reduced in rotary-only mode.
- Specific size may not be suitable for all project needs.
- Requires a compatible drill chuck for the cylindrical shank.
Setup, Compatibility & Care
Setup: Insert the cylindrical shank of the Bosch CYL-5 Drill Bit into the chuck of your corded or cordless impact drill. Ensure the chuck is tightened securely according to your drill's manual to guarantee a firm grip and proper power transfer.
Compatibility: This drill bit is compatible with all standard cylindrical shank systems found on corded and cordless impact drills. It is specifically designed for use with the hammer action of impact drills for optimal performance in masonry materials.
Care: After each use, clear any dust and debris from the flutes. Store the drill bit in a dry place to prevent corrosion. Periodically inspect the cutting edges for any signs of excessive wear or damage. For best results, use appropriate drilling speeds and pressure as recommended for your drill and material.