TFF M14 Diamond Multi-Layer Tapered Chamfer Drill Bit - Wet & Dry

Achieve more controlled hole enlargement, edge shaping and chamfering with the TFF M14 Diamond Multi-Layer Tapered Chamfer Drill Bit.

Designed as a practical accessory for compatible M14 angle grinders, this gold-coloured bit features a diamond-grit abrasive surface and a stepped tapered profile. The graduated working sections allow the user to remove material progressively around the edge of an existing hole, helping to improve fitment, smooth rough openings and create a cleaner chamfered finish.

The TFF chamfer bit can be used with or without water, depending on the material, working environment and power-tool instructions. Its compact one-piece design makes it suitable for tiling, stone fabrication, renovation and installation work.

Key Features

• TFF diamond-grit chamfering and shaping accessory
• Multi-layer tapered working profile
• Helps enlarge existing holes progressively
• Suitable for smoothing and correcting rough hole edges
• Helps create a controlled chamfered finish
• M14 female threaded connection
• Compatible with suitable M14 angle grinders
• Wet and dry dual-use design
• Brazed abrasive surface
• Compact one-piece construction
• Suitable for professional and DIY installation work

Specifications

• Brand: TFF
• Product type: Diamond tapered chamfer and hole-enlarging bit
• Quantity: 1 piece
• Connection type: M14 female thread
• Colour: Gold
• Working profile: Multi-layer tapered
• Abrasive surface: Diamond grit
• Construction type: Brazed
• Wet use: Yes
• Dry use: Yes
• Approximate top diameter: 20 mm
• Approximate middle diameter: 35 mm
• Approximate maximum working diameter: 50 mm
• Approximate connection width: 14 mm
• Approximate staged-section height: 12 mm per section
• Power tool included: No

Compatibility and Suitable Applications

The TFF tapered chamfer bit is suitable for compatible:

• M14 angle grinders
• M14 polishing tools
• Tile-installation equipment
• Stone-working tools
• Existing holes requiring enlargement
• Rough openings requiring edge correction
• Holes requiring shaping or chamfering

It may be suitable for compatible materials such as:

• Ceramic tile
• Porcelain tile
• Granite
• Marble
• Natural stone
• Engineered stone

Material performance may vary according to hardness, thickness, tool speed, cooling method and operator technique.

This TFF bit is intended primarily for enlarging, shaping and chamfering an existing opening. It is not designed to replace a core drill used to create a complete new hole in solid material.

How to Use

1. Disconnect the angle grinder from the power supply or remove the battery.
2. Confirm that the power tool has a compatible M14 spindle.
3. Inspect the TFF chamfer bit and power tool for damage.
4. Screw the bit securely onto the M14 spindle.
5. Confirm that it is seated correctly before starting the tool.
6. Secure the workpiece on a stable surface.
7. Position the tapered working surface against the edge of the existing hole.
8. Start the grinder while maintaining a firm two-handed grip.
9. Apply light and controlled pressure.
10. Guide the bit gradually around the hole edge.
11. Stop periodically to check the size, fit and finish.
12. Allow the bit and workpiece to cool before handling.

Wet Use

• Apply clean water to the working area for cooling and dust reduction.
• Keep water away from the grinder motor, plug, battery and electrical connections.
• Use wet operation only when the tool and working environment are suitable.
• Use appropriate electrical protection where required.

Dry Use

• Work in short, controlled intervals.
• Avoid excessive heat build-up.
• Use suitable dust extraction where possible.
• Wear approved respiratory protection.
• Allow the bit to cool periodically.

Safety and Important Usage Information

• Wear safety glasses or a face shield.
• Use hearing protection, protective gloves and respiratory protection.
• Use only with a compatible M14 power tool.
• Confirm that the grinder speed is suitable for the accessory.
• Follow the power-tool manufacturer's instructions.
• Disconnect the tool before installing or removing the bit.
• Do not use the bit if it is cracked, distorted or excessively worn.
• Do not force the bit into the material.
• Use gentle pressure and allow the abrasive surface to remove material progressively.
• Hold the grinder firmly with both hands.
• Use the grinder's auxiliary handle.
• Secure the workpiece before beginning.
• Do not use the bit for impact or hammer drilling.
• Avoid excessive sideways force or sudden twisting.
• Keep hands and loose clothing away from the rotating accessory.
• Keep bystanders away from the work area.
• Allow the bit to stop completely before placing the tool down.

Care and Maintenance

• Disconnect the grinder before removing the TFF bit.
• Allow the accessory to cool completely after use.
• Rinse away slurry after wet operation.
• Remove dry dust using a soft brush.
• Avoid corrosive chemicals and abrasive cleaning tools.
• Dry the bit thoroughly before storage.
• Keep the M14 thread clean and free from debris.
• Store the bit in a clean, dry container.
• Inspect the abrasive surface and threaded connection before each use.
• Discontinue use if the bit becomes damaged or severely worn.

Please Note

• This product includes one TFF chamfer drill bit only.
• The angle grinder, workpiece, cooling equipment, safety gear and other demonstration items are not included.
• This accessory is intended for enlarging, shaping and chamfering existing holes.
• It is not a conventional drill bit for creating a complete new hole.
• Compatibility depends on the tool spindle, material and working conditions.
• Confirm M14 compatibility before purchasing.
• Wet use requires a suitable power tool and appropriate electrical precautions.
• Measurements are approximate and may vary slightly due to manufacturing tolerances.
• Always test the TFF bit on an off-cut or hidden area before working on the final surface.

What's in the box
1 x TFF M14 Diamond Multi-Layer Tapered Chamfer Drill Bit - Wet & Dry