Rawlplug Hss Drill Bit - Silver - 2.5mm

Drill bits made of high quality HSS steel. Ensures high durability. Ground spiral enables you to d...

Best current price£13.83from B&Q

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B&QB&Q - Hss Drill Bit Silver (2.5mm)
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OnBuy.com(2.5Mm, Silver) Rawlplug Hss Drill Bit 5059444088629
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Product Information

Full details

This Rawlplug HSS drill bit is designed for professionals and DIY enthusiasts needing precise drilling in hard materials like steel. Its high-quality HSS steel construction ensures durability, while the ground spiral and double-sided point geometry provide excellent centering and reduced pressure for clean, accurate holes. A key caveat is its suitability primarily for harder metals, requiring appropriate speeds and lubrication for optimal performance and bit longevity.

All features

BrandRawlplug

Extended Product Information

FAQs

What type of materials can this drill bit be used on?

This HSS drill bit is primarily designed for drilling into various metals, including hard steel. It can also be used on plastics and certain harder woods, though specialized bits are recommended for softer materials like plain wood.

Why is the point angle 135 degrees?

The 135-degree point angle is optimized for drilling into harder materials like steel. It allows for better penetration and heat dissipation compared to lower angles, reducing the risk of overheating and tool wear.

Do I need to use cutting fluid?

Using cutting fluid or lubricant is highly recommended when drilling metals, especially harder steels. It helps to cool the drill bit, reduce friction, flush away chips, and extend the life of the bit.

How does the double-sided point geometry help?

The double-sided geometry ensures ideal centering, meaning the bit starts drilling exactly where you intend it to, without drifting. It also reduces the pressure needed to initiate the hole, making drilling easier and more controlled.

What is HSS steel?

HSS stands for High-Speed Steel. It's a type of tool steel known for its high hardness, red-hardness, and wear resistance, making it suitable for high-performance cutting tools like drill bits.

How do I maintain the drill bit?

Clean the bit after use to remove debris. Store it in a dry place to prevent rust. Use cutting fluid during drilling and avoid applying excessive force or incorrect speeds.

Can I use this bit with any drill?

Yes, this bit is compatible with the standard chucks found on most corded and cordless drills. Ensure the chuck is tightened securely around the bit's shank.

Troubleshooting

Drill bit is not cutting effectively or is overheating.

Ensure you are using adequate cutting fluid. Reduce drill speed. Check if the drill bit is dull or damaged and needs replacement.

Drill bit wanders or 'walks' on the surface.

Use a center punch to create a small indentation before drilling. Ensure the drill bit is properly centered in the chuck and maintain firm, steady pressure.

Excessive chipping or rough hole edge.

Apply cutting fluid. Ensure the spiral is clearing chips effectively; if not, partially retract the bit periodically. Use a slower speed and steady pressure.

Drill bit breaks during use.

This usually indicates excessive force, incorrect speed, or drilling into a material harder than intended. Ensure stable support and appropriate drilling parameters.

Pros and Cons

Pros

  • High durability due to HSS steel construction.
  • Precise drilling thanks to ground spiral and double-sided point geometry.
  • Reduced drilling pressure for easier use.
  • Suitable for drilling into hard steel.
  • Ensures ideal centering, preventing bit wander.

Cons

  • May overheat if used without proper cooling (e.g., cutting fluid).
  • The 2.5mm size is specific and may not be suitable for all tasks.
  • Requires a firm grip and stable drill for best results.
  • Can be brittle if subjected to excessive lateral force.
  • Not ideal for very soft materials like wood where specialized bits are better suited.

Setup, Compatibility & Care

Setup:

  1. Securely insert the 2.5mm Rawlplug HSS drill bit into the chuck of your drill.
  2. Ensure the drill is set to the appropriate speed for metal drilling – typically a slower speed for harder materials.
  3. If drilling metal, apply a suitable cutting lubricant or oil to the drill bit and the material surface before starting.

Compatibility:

  • Compatible with standard drill chucks (three-jaw chucks) found on most corded and cordless drills.
  • Suitable for use in drill presses for enhanced stability and accuracy.
  • Designed for drilling metals, plastics, and certain harder woods. Use with caution on softer woods to avoid excessive splintering.

Care:

  • Clean the drill bit after each use to remove metal shavings and debris.
  • Store the drill bit in a dry environment to prevent rust.
  • Avoid excessive heat buildup by using cutting fluid and appropriate drilling speeds.
  • Inspect the bit for wear or damage before each use.

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