Dapetz Diamond Hole Saw Drill Bit - 30mm

This Dapetz diamond dust hole saw is designed for precision cutting in a variety of hard materials...

Best current price£8.49from B&Q

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B&QB&Q - 30mm Diamond Hole Saw Drill Bit For GlassTileCeramicMarbleLimestoneFibreglass And Porcelain
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OnBuy.com30Mm Diamond Hole Saw Drill Bit €“ Brazed Core Cutter For Tile, Porcelain, Glass, Marble, And Ceramic Cutting 5056042003979
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£97.67
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Product Information

Full details

The Dapetz 30mm Diamond Hole Saw is designed for DIY enthusiasts and professionals who require clean, precise holes in challenging hard materials like porcelain, ceramic, marble, and slate. Its primary benefit is a high-performance diamond-grit edge that cuts through material up to hardness grade 5 with minimal chipping; however, it requires a steady water supply during operation to prevent overheating and premature wear.

All features

BrandDapetz

Extended Product Information

FAQs

Can I use this drill bit without water?

No. Using the bit dry will cause rapid overheating, which ruins the diamond bond and leads to premature failure of the tool.

Will this work on tempered glass?

This bit is intended for ceramic, glass, and stone. However, tempered glass is under high internal tension and will likely shatter; do not use on tempered glass.

What power drill setting should I use?

Use a low-to-medium speed setting and ensure the drill's hammer function is turned off.

How deep can this hole saw drill?

The diamond grit covers a 3mm depth, but the saw can pass through tiles as thick as the depth of the grit comfortably if kept cool.

Does it fit a standard drill chuck?

Yes, it is compatible with all standard 3-jaw drill chucks found on conventional hand-held drills.

Troubleshooting

Bit is skating across the tile surface

Apply a piece of masking tape to the starting point to provide grip, or start the cut at a slight angle before straightening.

Drilling is taking too long or feels dull

The bit may be overheated. Ensure a constant water flow. If the diamond grit is visibly worn away, the bit has reached the end of its service life.

The tile is cracking or chipping

Ensure you are using a low drill speed and avoid applying excessive downward pressure. Let the diamond grit do the cutting.

Pros and Cons

Pros

  • Excellent for cutting hard materials like porcelain and slate
  • Corrosion-resistant chrome-plated finish
  • Consistent and clean hole finishes
  • Compatible with standard household power drills

Cons

  • Requires constant water cooling for every use
  • Not suitable for drilling through metal or wood
  • Limited to material hardness grade 5

Setup, Compatibility & Care

The Dapetz 30mm Diamond Hole Saw is compatible with any standard electric or cordless drill chuck. To maximize the life of the bit, it must be kept cool at all times; use a sponge or a dedicated water-feed system to ensure the contact area remains wet. After each use, rinse the bit with clean water to remove dust and debris, then dry it thoroughly before storage to maintain the integrity of the chrome plating and prevent rust.

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