JCB HSS Drill Bit Set - 2.5 x 57mm - Set of 3

Elevate your drilling experience with our high-performance JCB HSS drill bit set featuring the inn...

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JCB ToolsJcb 2.5 X 57Mm 7 Point Hss Drill Bit Set Set Of 3 Turbojet | 5055803318673
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Product Information

Full details

The JCB HSS Drill Bit Set is designed for both professional contractors and DIY enthusiasts who require precision and longevity when working with metal or wood. The primary benefit of these bits is the TurboJet 7 cutting edge, which provides superior drilling speed and accuracy, though users should note that the small 2.5mm diameter requires a steady hand to avoid breakage during heavy-duty applications. This set of three bits features advanced TiN lubrication to reduce friction, making them a high-durability choice for precision drilling projects.

All features

Model Part Number5055803318673
BrandJCB

Extended Product Information

FAQs

What materials are these drill bits suitable for?

These HSS bits are designed primarily for metal and wood applications, offering high performance in both.

Can I use these bits with a hand-held cordless drill?

Yes, they are compatible with standard cordless drills, provided the chuck size can accommodate the 2.5mm shank.

How do I know when the bit is dull?

If you find you are applying significantly more pressure to achieve the same drilling speed, the edge may have lost its sharpness.

Why is the coating gold-colored?

The gold appearance comes from the Titanium Nitride (TiN) lubrication coating, which is applied to improve hardness and reduce friction.

Are these suitable for masonry or concrete?

No, these are HSS drill bits and are not designed for masonry. Use dedicated masonry drill bits for stone or concrete.

Should I use a hammer drill setting with these bits?

No, you should never use the hammer function when using HSS bits, as it can cause the small diameter bit to snap instantly.

Troubleshooting

Bit slipping in the chuck

Ensure the drill chuck is fully tightened and the bit is inserted deep enough to be gripped by the jaws.

Bit overheating or smoking

Reduce your drilling speed (RPM) and apply a small amount of cutting lubricant to reduce friction.

Hole is larger than 2.5mm

Check for excessive vibration or 'wobble' in your drill motor; ensure the bit is perfectly perpendicular to the surface.

Pros and Cons

Pros

  • Significantly longer lifespan than standard drill bits
  • TurboJet 7 tip reduces surface slippage during start-up
  • TiN lubrication ensures smooth operation and less heat accumulation
  • High-precision engineering for exact hole sizing

Cons

  • Small 2.5mm diameter is prone to snapping if misused
  • Requires proper RPM management to prevent bit overheating
  • Limited to smaller pilot holes or thin material processing

Setup, Compatibility & Care

To ensure compatibility, verify that your drill chuck is capable of securing 2.5mm bits firmly without slippage. Always insert the drill bit into the center of the chuck and tighten securely to prevent wobble, which could lead to bit fracture. After use, wipe the bits clean with a dry cloth to remove metal shavings or debris. Store them in a cool, dry place within their original container or an organizer to prevent the cutting edges from becoming dull through contact with other tools. Regularly inspect the tips for wear, and avoid using these bits on excessively thick materials that exceed their rated length capabilities.

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