JCB TurboJet 7 Point HSS Drill Bit - 7.5 x 109mm

Maximize your drilling capabilities with the JCB TurboJet 7 Point HSS Drill, featuring the innovat...

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JCB 7.5 x 109mm 7 Point HSS Drill Bit TurboJet | 5055803318772

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Product Information

Full details

The JCB TurboJet 7 Point HSS Drill Bit is an ideal choice for professional tradespeople and serious DIY enthusiasts who require precision and durability in their metal or wood drilling tasks. Featuring a specialized 7.5mm diameter and a unique TurboJet 7 cutting tip, this bit offers significantly faster material removal and reduced vibration compared to traditional drill bits. While it is engineered for heavy-duty longevity, users should be aware that the M2 TiN coating requires proper speed control to prevent premature overheating during high-intensity drilling.

All features

Model Part Number	5055803318772
Brand	JCB

Extended Product Information

FAQs

Can I use this drill bit on concrete or masonry?

No, this is an HSS (High-Speed Steel) bit designed for metal and wood. Using it on masonry will immediately dull the tip and strip the coating.

Does this bit require a special chuck size?

The 7.5mm shank fits into any standard drill chuck that accepts 10mm or 13mm capacity.

What is the benefit of the TiN coating?

The TiN (Titanium Nitride) coating increases the surface hardness and reduces friction, which directly leads to faster cutting and longer tool life.

Can this bit be re-sharpened?

Yes, but it requires precision tools to maintain the specialized TurboJet 7 edge geometry.

Is cutting oil necessary?

While not strictly required for wood, cutting oil is highly recommended for drilling metals to ensure the bit remains cool and to extend its lifespan.

Troubleshooting

Bit is 'walking' or sliding on the surface before cutting.

Use a center punch to create a small dimple before starting or apply slightly more downward pressure at the start of the cut.

Drill bit is turning black or changing color.

This indicates overheating. Reduce the RPM (speed) of your drill and apply cutting fluid to reduce friction.

Chip buildup in the flutes.

Regularly 'peck drill' by retracting the bit slightly every few seconds to clear metal shavings from the hole.

Pros and Cons

Pros

Significantly faster drilling speed than standard HSS
Up to 4x longer operational life
Reduced vibration for more accurate hole placement
High heat resistance from the TiN coating
Professional-grade material durability

Cons

Requires careful speed management to avoid overheating
Specific 7.5mm size may not fit all standard general-purpose drill sets
Higher initial cost compared to basic carbon steel bits

Setup, Compatibility & Care

This 7.5mm bit is compatible with all standard keyed and keyless chucks found on corded and cordless drills. Ensure the bit is inserted fully into the chuck and tightened securely to avoid slippage.

Care Instructions:

Always clean debris from the flutes after use to prevent clogging.
Store in a dry environment to maintain the integrity of the coating.
Avoid impact or drops on hard surfaces, as high-hardness coatings can be brittle under shock loading.
Re-sharpen using a diamond-tipped or specialized HSS sharpening tool only if necessary, ensuring the original geometry is preserved.