Dapetz Diamond Hole Saw Drill Bit Cutter - 55mm

These 55mm diamond drill bits are constructed from durable diamond and carbon steel, offering exce...

Best current price£4.39from B&Q

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Product Information

Full details

The Dapetz 55mm Diamond Hole Saw Drill Bit is an essential tool for professional contractors and serious DIY enthusiasts who need to make precise holes in dense materials like ceramic, marble tile, stone, and glass. Built with a high-quality diamond coating and durable carbon steel, this bit delivers clean, smooth cuts without rough edges; however, it requires a steady water supply during operation, as dry drilling will cause irreversible damage to the diamond segment.

All features

Model Part NumberDP10666
BrandDapetz

Extended Product Information

FAQs

Can I use this bit for dry drilling?

No, dry drilling is strictly prohibited. You must use water to keep the bit cool to avoid damaging the diamond coating.

What is the recommended speed for this bit?

The ideal drilling speed is between 800 and 1000 RPM.

Which materials can I cut with this?

It is designed for ceramic, marble tile, stone, and glass.

Why does the bit have side slots?

The side slots allow water to enter for cooling and help move debris out of the borehole for a smoother cut.

What should I do if the bit starts to rust?

Ensure it is dried completely after every use. For light surface oxidation, a light abrasive cloth can be used, but prevention through proper drying is best.

Troubleshooting

Bit is overheating or smoking

Stop immediately, check that water flow is consistent, and verify you are not drilling dry.

Excessive vibration or wandering

Ensure the drill is perpendicular to the surface and start the hole at a slight angle or use a guide to mark the center.

Drilling is too slow

Check if the RPM is within the 800-1000 range and ensure the debris evacuation slots are not clogged with slurry.

Pros and Cons

Pros

  • Excellent wear resistance due to diamond coating
  • Clean and smooth cutting performance
  • Effective debris removal through side slots
  • Durable carbon steel construction prevents rust
  • Great for a wide variety of hard surfaces

Cons

  • Strictly prohibits dry drilling
  • Requires constant cooling water for longevity
  • Specific RPM range must be maintained for best results

Setup, Compatibility & Care

To ensure the longevity of your bit, proper handling is required. Always secure your workpiece firmly with clamps to prevent movement, which could lead to bit damage. Ensure the drill bit is tightened securely in the chuck of your drill.

When using, do not apply excessive downward pressure; let the diamond edges do the work. After each use, rinse the bit with clean water to remove any residual debris from the slots and dry it thoroughly before storage to maintain its rust-resistant properties. Always store in a cool, dry place away from corrosive chemicals.

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