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  • Ratings Standard Delivery: £3.99
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Technical Specification
PRODUCT NUMBER DB055CBDB050CBDB060CBDB045CBDB065CB
Type Cobalt Drill BitCobalt Drill BitCobalt Drill BitCobalt Drill BitCobalt Drill Bit
Size 5.5mm5mm6mm4.5mm6.5mm
Pack Qty 1010101010
Size Range Up to 10mmUp to 10mmUp to 10mmUp to 10mmUp to 10mm

Q 1. What is the delivery time?

A. Standard UK Mainland delivery is 3–5 working days.

Q 2. Are delivery charges included in the product price?

A. No, delivery charges are calculated separately at checkout based on order weight, size, and delivery location. 

Q 3. What is your return policy?

A. We accept returns within 30 days of purchase for items that are unused, undamaged, and in their original packaging. Returns are available only for UK-delivered orders and must include proof of purchase.

Before returning an item, please contact us at [email protected] to obtain a Return Merchandise Number (RMN). You may also be asked to share images of the product and its packaging for verification.

Items that do not meet these conditions will not be accepted for return. If your return is approved, we will initiate a refund to your credit card or original method of payment. A restocking fee of up to 15% of the order value may apply to each returned item.

Q 1. What size is Abracs cobalt drill bit DBCB05510

A. It is a 5.5mm diameter cobalt M35 high speed steel drill bit supplied in a pack of ten.

Q 2. Which materials is this drill bit specified as suitable for

A. The specification notes suitability for wood, and cobalt construction can also benefit metal drilling where appropriate.

Q 3. In what applications are 5.5mm drill bits commonly used

A. Five and a half millimetre holes are often used for medium size fixings and clearance holes.

Q 4. How does using cobalt M35 steel benefit drill bit life

A. Cobalt M35 helps retain hardness at higher temperatures, supporting longer life under demanding drilling conditions.

Q 5. Who benefits most from stocking 5.5mm cobalt bits like this

A. Fabricators, maintenance professionals and installers benefit when frequently drilling this mid size hole.

Q 6. How can users help ensure accurate drilling with this bit

A. Using pilot holes, steady feed and correct speeds all contribute to accurate, round holes.

Q 7. How does a pack of ten bits support workshop drilling operations

A. It provides multiple replacements, reducing downtime if individual bits wear or become damaged.

Q 8. What precautions should be observed when drilling metals with this bit

A. Users should apply cutting fluid, avoid excessive pressure and clear chips periodically to manage heat and wear.

Q 9. How does this size integrate into a broader cobalt bit set

A. It offers a specific mid range diameter alongside smaller and larger bits for full coverage.

Q 10. What user practices help maximise the service life of DBCB05510

A. Avoiding side loading, securing workpieces and letting the bit cut rather than forcing it all help extend life.

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