For installers: electrical · HVAC · plumbing · EV · PV

A core bit that fits your drill. First time.

You drill penetrations for cables, pipes and ducts – in reinforced concrete, masonry and porcelain. Choose the diameter and thread in the configurator, take a ready kit for your first job, and send worn core bits for retipping.

Configure a core bit Starter kits
  • A thread for your machineUNC, BSP, M16, M14, adapters
  • Diameters for servicesboxes, DN 50–160, ventilation
  • Kitselectrician, installer, anchors
  • Retippingof core bits, with a report

What changes when you work with us

Threadyou find out on deliverychosen in the configurator before ordering
Diameteryou guess the clearancea diameter chart for boxes, pipes and ducts
Thick wallthe core bit is too shortlength and extension given up front
Rebarjamming, broken segmentssegments with clearance and impact grit
Worn core bityou buy a new oneretipping – new segments on the tube

Switch to compare.

We know what you are looking for

Diameter, thread, availability

Which diameter for my pipe?Chart: 68/82 boxes, DN 50–160, Ø 125–200 ventilation.
Will it fit my drill?1 1/4" UNC, 1/2" BSP, M16, M14 – and adapters between systems.
Is it in stock?Popular diameters in stock – we confirm current availability in the quotation.

Advantages

What an installer gains

01

No returns because of the thread

The configurator matches the mounting to the machine and warns you about unusual choices. Thread chart and adapters on one page.

Thread chart →
02

The right diameter straight away

Ready matches: Ø 60 box → 68 core bit, DN 110 → 122–132, Ø 160 duct → 182. No redrilling.

Which diameter to choose →
03

A kit for your first job

Electrician, HVAC/plumbing installer and anchor kits – the most common diameters in one quote line.

Kits →
04

Drilling without jamming

Segments with side clearance and rebar-resistant grit – a penetration through a reinforced slab without stopping.

Core bits for reinforced concrete →
05

The right length for thick walls

The configurator calculates the working length and extension for the wall thickness – you know before you go to site.

Configurator →
06

Cheaper with retipping

Worn core bits – other brands too – get new segments. The tube and thread keep working.

Core bit retipping →

Your kit

Tools and calculators for installers

Core bit configuratordiameter, thread, length, extension 68 mm box core bitsM16 + SDS-plus adapter Masonry core bitsdry, brick and block Porcelain core bitsM14 for angle grinders Core drill selectorpower and speed for the diameter Quote listcollect items and send them in one form

How we start

Send your list of holes – we will match the core bits

  1. 01Diameters, material, wall thickness
  2. 02Core bits and thread selected
  3. 03Quotation with availability

Core bit quote request

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Questions

Core bits for installers – questions

Thread and diameter charts
Which core bit for electrical boxes?

Ø 68 mm for a Ø 60 box, Ø 82 for a Ø 80 box – dry, M16 with an SDS-plus adapter and a centre drill.

Which core bit for a DN 110 drain pipe?

Usually Ø 122–132 mm – with clearance for sealing the penetration. See the diameter chart.

My drill has a 1/2" thread – what about larger diameters?

Larger diameters use 1 1/4" UNC. We will supply an adapter or a core bit with the right shank.

Do you retip core bits?

Yes, if the tube is straight and free of cracks. Request retipping.

Who are you? See what you gain

All industries