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Diamond crown for core drill, which one to choose?
Among all the tools on the market, a diamond core bit for core drilling allows you to drill different materials quickly and with an excellent cutting finish. Today we analyze together what are the details to choose the right diamond core bit for core drilling.
Diamond crown: hole diameter and depth.
When choosing which diamond core bit to use for cutting a building material you need to keep in mind the size of the hole you need to make.
Diameter of the hole to be drilled:
The hole size when using a diamond core bit for core drilling usually ranges from Ø24mm to Ø600mm. There are smaller diameters up to 4mm, but they are usually diamond core bits for stoneware and ceramic that can be mounted on drills or grinders.
Based on the diameter of the hole you need to drill, you will choose an equivalent diamond crown. If instead you need a particular diameter of the internal core to perform laboratory analysis, then it is essential to understand the internal diameter of the tool.
Nord srl produces diamond crowns from 4mm up to 1600mm in diameter, for various applications.
Thickness of the material to be drilled:
The thickness of the material to be drilled is instead the fundamental data for choosing the height of the body of your diamond core bit for core drilling. Diamond core bits range from a cutting thickness of 170mm to 1000mm. Read the paragraph: “dry or wet diamond core bit?” to check the various heights available.
Diamond crown for Hilti, Makita and Wurth core drills
Another fundamental aspect for choosing your next diamond core bit for core drilling is the type of machine you need to use. Standard diamond core bits usually have an M16 or UNC 11/4″ attachment. That said, it is possible to purchase separately the adapters needed to use professional diamond core bits also on Hilti, Wurth machines or manual drills.
Diamond drill crown: how to do it?
If you want to use your diamond core bit with a classic drill, you can use SDS Plus, SDS Max adapters. However, I strongly advise you not to exaggerate with the size of the hole and the cutting depth. If you need to make holes larger than Ø80mm or with depths greater than 150mm, use a professional core drill.
Small fundamental tip: if I use your drill to make holes with diamond crowns, make sure to remove the percussion function . The diamond cuts by abrasion and would be greatly affected by the percussion on the cut material. Consequence: your diamond crown loses its cutting edge, or worse, the teeth detach.
Dry or wet diamond core bit?
It is very difficult to analyze this topic in a few lines, so let's get straight to the point. Wet diamond core bits (using water) are definitely better performing than dry ones.
Water acts as a coolant and lubricator, ensuring that your diamond core bit for core drilling will perform much better. Dry diamond core bits are typically used when using water could cause precarious damage to the structure being drilled.
Nord produces different diamond crown solutions for core drilling machines:
FORCA: Wet diamond crowns, UNC 11/4″ attachment – Ø24mm up to Ø600mm – Body height from 450 to 1000 mm.
FORLD300: Dry diamond crowns, UNC 11/4″ attachment – Ø32mm up to Ø200mm – Body height 330mm
FORLD : Dry diamond crown, M16 connection – Ø32mm up to Ø200mm – Body height 170mm
Used Diamond Crown: What to Do?
Finally, I'll let you in on a secret about used diamond crowns: They can often be refilled.
In fact, Nord SRL offers a truly important service: if you have a used and finished diamond crown, it is possible to regenerate it with new diamond sectors.
This service can save you up to 20%.
If you need more information, do not hesitate to contact us at sales@lanordsrl.it or via the Whatsapp chat on this website.
