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Bosch EXPERT HEX-9 Multi-Construction TCT Drill Bit - 4 x 90mm

Bosch EXPERT HEX-9 Multi-Construction TCT Drill Bit - 4 x 90mm

This highly versatile drill bit can drill accurately into hard materials, such as granite, without...

Best current price£2.95from Amazon

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AmazonBosch 1x EXPERT HEX-9 Multi Construction Drill Bit
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Power Tools DirectBosch Powertool Accessories 2.608.902.250 Expert Hex-9 Multi Construction Drill Bit 4 X 45 X 90Mm
£3.95 delivery
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B&QB&Q - Hex Mixed Drill Bit (Dia)3mm (L)90mm
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eBayBosch EXPERT HEX-9 Multi Construction Drill Bit 4 x 45 x 90MM 2608902250
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OnBuy.comBosch Expert Hex-9 Multi Construction Carbide Drill Bit 5.5 X 90 X 150 Mm.
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£8.37
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Product Information

Full details

The Bosch EXPERT HEX-9 Multi-Construction TCT Drill Bit is designed for professionals and serious DIYers who need a single, reliable bit for drilling into a wide variety of hard materials. Its key benefit is its versatility, allowing accurate drilling into granite, concrete, brick, tile, wood, and metal without needing to switch bits. A potential caveat is its specialized use, meaning it might be overkill for only light-duty tasks.

All features

Model Part Number2608902250
BrandBosch

Extended Product Information

FAQs

What materials can this drill bit be used on?

This bit is designed for a wide range of materials including granite, concrete, brick, soft tile, wood, and metal.

Can I use this bit with my hammer drill?

Yes, you can use this bit with a hammer drill. Use the impact mode for concrete and stone, and switch to rotary-only mode for softer materials like wood and metal.

What is the advantage of the Hex shank?

The 1/4" hex shank provides a more secure fit in your drill's chuck, preventing slippage and allowing for maximum torque transfer, leading to more efficient drilling.

How does the EXPERT HEX-9 differ from a standard drill bit?

The EXPERT HEX-9 features optimized carbide construction, a specialized geometric design for accuracy, and a hex shank for better torque transfer. It's designed to handle multiple hard materials accurately, unlike standard bits which are often material-specific.

How do I maintain the drill bit for longevity?

After use, clean the bit of any dust or debris and store it in a dry place. Avoid impacts that could damage the carbide tip.

What does TCT stand for?

TCT stands for Tungsten Carbide Tipped. This indicates the material used for the cutting edges, known for its hardness and durability.

Troubleshooting

Drill bit is not gripping securely in the chuck.

Ensure you are using a drill with a 1/4" hex chuck or a 3-jaw chuck. For 3-jaw chucks, insert the hex shank fully and tighten the chuck firmly. Consider a hex collet adapter if your drill has one.

Drilling is slow or the bit is overheating.

Verify you are using the correct drilling mode (impact for concrete/stone, rotary for wood/metal/tile). Ensure the material being drilled is compatible. Apply steady, consistent pressure and allow the bit to cut; do not force it. Clean debris from the hole periodically.

Drilling is inaccurate, and the bit is skidding.

Ensure the tip is sharp and undamaged. Start drilling at a slower speed to create a pilot divot before increasing speed. Check that the material surface is relatively flat where you are starting.

Pros and Cons

Pros

  • Exceptional versatility across numerous materials
  • High accuracy and reduced skidding
  • Durable construction for longevity
  • Strong torque transfer via hex shank
  • Suitable for both impact and rotary drilling modes

Cons

  • May be more robust than necessary for light-duty drilling tasks
  • Requires a drill with a compatible hex chuck or adapter for optimal performance
  • TCT (Tungsten Carbide Tipped) can chip if used improperly on very brittle materials

Setup, Compatibility & Care

Setup: The EXPERT HEX-9 bit features a 1/4" hex shank. Ensure your drill is equipped with a 3-jaw chuck or a 1/4" internal hex tool holder. For optimal performance and safety, insert the bit firmly into the chuck and tighten securely. If using on concrete or stone, set your drill to the appropriate impact mode. For wood, tile, metal, and plastic, use rotary mode only.

Compatibility: Compatible with all standard drills featuring a 1/4" hex chuck or a 3-jaw chuck that can securely grip the hex shank. Always check your drill's specifications for impact vs. rotary mode compatibility.

Care: After use, clean the bit of any debris. Store in a dry place to prevent corrosion. Avoid dropping or subjecting the bit to excessive shock, which could damage the carbide tip.

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