Extended Dry Diamond Core Bits For Deep Walls

Extended Dry Diamond Core Bits For Deep Walls
 Extended Dry Diamond Core Bits For Deep WallsExtended Dry Diamond Core Bits For Deep Walls 
Our Price:  £44.00(Exc. 20% VAT)

Model:  CD.LP.DRY.57x400.A
Brand:  Right Lines

Right Lines

Applications: These core bits have extended barrels to drill into deep walls. The smaller diameters will also help electricians and plumbers to drill through  double walls in 1 action to fit conduit pipes or plumbing pipes. They are especially useful in the walls of older building where the middle may be loose-filled. Once drilled through, the pipe can be inserted as the core bit is withdrawn to help avoid fall-back of the loose fill. They use standard dry core bit 1/2" BSP fittings. Use a power drill without hammer action and with a clutch or torque limiter. Ideal power would be 1kW or more, especially for the 107mm size. A pilot drill is not used with these extended core bits. 


  • Premium diamond segments
  • Laser welded segment joins for strength
  • Slotted or turbo style segments for faster cutting..
  • External spiral dust feed to push dust to back.
  • Takes standard dry core bit fitments 1/2"BSP male adaptors.
  • Ideal for most wall stone, brick and concrete.

Also Available: We stock a range of accessories for dry core bits.

Tip: As extended cores do not use pilot drills a simple positioning holder to start drilling, can be made using a 'v' shape cut out of a piece of wood.

Delivery Options:

We will normally dispatch orders received by 3.00pm on any working day, that same day.

British Mainland:

Orders valued at below £50.00 + VAT will be given the default 2-3 day delivery at a charge of just £3.00, unless next day delivery is selected at just £5.00. Orders valued £50 or over + VAT will be given free express delivery. This will be next working day for most of Great Britain but a little longer in some remote areas.

We can offer a faster 'Before 1.00pm' option for deliveries to most of mainland Britain for an extra £4.00 + VAT.

Saturday delivery is available for most parts of Britain for an extra £10.00 + VAT.

Northern Ireland:

Orders up to £49.99 + VAT: £12. Orders £50 - £99.99 + VAT: £7.00. Orders over £100 + VAT: Free

Deliveries Outside UK:

Ireland: This website is now enabled for the Republic of Ireland. If you are VAT registered we can provide VAT-free shipments.

Other Countries: We have carrier contracts that enable us to deliver to most countries. Please ask us for a quote if requiring delivery outside of UK.