Faithfull Multi Construction Drill Bits - 5 x 85mm
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B&QB&Q - Multi Construction Drill Bits Multi Colour (5 X 85mm)
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Product Information
Full details
The Faithfull Multi Construction Drill Bits (5 x 85mm) are an essential choice for tradespeople and DIY enthusiasts who require a versatile solution for drilling into various building materials without frequent bit changes. These bits excel in multi-layer applications and cordless drill setups, offering a durable diamond-ground carbide tip that maintains its integrity over long periods of use. While they provide exceptional versatility across surfaces like brick, concrete, and metal, users should note that the 4mm size in this series is strictly limited to rotary-only operation, unlike larger bits which can handle hammer action.
All features
| Model Part Number | 1362266 |
|---|---|
| Brand | Faithfull |
Extended Product Information
FAQs
Can I use these bits on hardened steel?
These bits are designed for general building materials. They will handle light metal and aluminum, but hardened steel may cause premature wear.
Is the 5mm bit suitable for hammer mode?
Yes, only the 4mm variant in this range is restricted to rotary use. The 5mm bit is compatible with hammer action.
What is the best speed for drilling into wood?
Use a high speed with light pressure to ensure a clean entry and exit hole.
Can I use these for porcelain tiles?
They can work on many tiles, but for hard porcelain, a dedicated diamond drill bit is usually recommended for the best finish.
Should I use coolant when drilling metal?
Yes, using a light cutting oil or lubricant will extend the life of the bit when drilling into metal.
Troubleshooting
Bit is sliding or slipping on surface
Ensure the drill is in the correct mode and apply a small center punch mark to give the bit a starting point on hard surfaces.
Excessive heat generation
Reduce your drilling speed and increase the frequency of clearing the debris from the hole.
Hole is not drilling straight
Check that the bit is fully inserted in the chuck and maintain a perpendicular angle to the work surface throughout the process.
Pros and Cons
Pros
- Versatile design reduces the need to switch drill bits frequently
- High-quality carbide tips ensure a long working life
- Effective debris clearance prevents overheating
- Excellent performance in both corded and cordless tools
Cons
- 4mm bit size is restricted to rotary mode only
- Not intended for heavy-duty industrial masonry applications
- Requires careful speed adjustment based on the material density
Setup, Compatibility & Care
Always ensure the drill bit is securely tightened in the chuck before starting your project. For optimal longevity, clear the hole frequently of dust when drilling deeper into masonry. Keep the bits in a dry environment to prevent oxidation and store them in a bit organizer to protect the carbide tips from impact damage with other metal tools. Use cooling lubricants when drilling into metal to preserve the edge sharpness, and avoid excessive side-loading which can cause the drill bit to snap under pressure.