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Diamond Core Drill Bits for Dry and Wet Drilling in Concrete and Reinforced Concrete

Diamond Core Drill Bits for Concrete & Reinforced Concrete

CAHARD diamond core drill bits are available for concrete and reinforced concrete drilling applications, with options for dry and wet drilling. The standard range covers diameters from Ø18 mm to Ø300 mm, with a 450 mm overall length and 1-1/4" connection. Segment specifications vary by drill diameter. Refer to the size table below when selecting the required bit.

Applications

Suitable for construction, installation and renovation work where core holes are required in concrete or reinforced concrete.

Concrete Drilling Core drilling for walls, floors and structural concrete.
Reinforced Concrete Drilling For drilling applications involving concrete with reinforcing steel.
Pipe & Cable Openings Suitable for drilling service openings for pipes, cables and other installations.

Available Sizes & Specifications

Check the standard size range below and select the drill diameter that matches your required hole size.

Diameter RangeØ18–Ø300 mm
Overall Length450 mm
Thread / Connection1-1/4"
Drilling OptionsDry / Wet
MaterialConcrete / Reinforced Concrete
Item No. Drill Diameter Thread / Connection Overall Length Drill Segment Specification (mm)
1 Ø18 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
2 Ø20 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
3 Ø22 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
4 Ø25 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
5 Ø28 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
6 Ø32 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
7 Ø36 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
8 Ø38 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
9 Ø40 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
10 Ø42 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
11 Ø45 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
12 Ø51 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
13 Ø56 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
14 Ø60 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
15 Ø63 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
16 Ø68 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
17 Ø76 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
18 Ø83 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
19 Ø89 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
20 Ø96 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
21 Ø102 mm 1-1/4" 450 mm 24 × 9 × (3.5)4
22 Ø108 mm 1-1/4" 450 mm 24 × 9 × (3.5)4.1
23 Ø112 mm 1-1/4" 450 mm 24 × 9 × (3.5)4.1
24 Ø114 mm 1-1/4" 450 mm 24 × 9 × (3.5)4.1
25 Ø120 mm 1-1/4" 450 mm 24 × 9 × (3.5)4.1
26 Ø127 mm 1-1/4" 450 mm 24 × 9 × (3.5)4.1
27 Ø132 mm 1-1/4" 450 mm 24 × 9 × (3.7)4.2
28 Ø140 mm 1-1/4" 450 mm 24 × 9 × (3.7)4.2
29 Ø150 mm 1-1/4" 450 mm 24 × 9 × (3.7)4.2
30 Ø160 mm 1-1/4" 450 mm 24 × 9 × (4)4.5
31 Ø165 mm 1-1/4" 450 mm 24 × 9 × (4)4.5
32 Ø180 mm 1-1/4" 450 mm 24 × 9 × (4)4.5
33 Ø200 mm 1-1/4" 450 mm 24 × 9 × (4)4.5
34 Ø202 mm 1-1/4" 450 mm 24 × 9 × (4)4.5
35 Ø220 mm 1-1/4" 450 mm 24 × 9 × (4)4.5
36 Ø230 mm 1-1/4" 450 mm 24 × 9 × (4)4.5
37 Ø245 mm 1-1/4" 450 mm 24 × 9 × (4)4.5
38 Ø253 mm 1-1/4" 450 mm 24 × 9 × (4)4.5
39 Ø273 mm 1-1/4" 450 mm 24 × 9 × (4)4.5
40 Ø300 mm 1-1/4" 450 mm 24 × 9 × 5

Drill segment specifications vary by drill diameter. The notation above follows the product specification data provided for this series; please confirm the corresponding size when placing an order.

How to Choose the Right Core Drill Bit

1. Confirm the Hole Diameter

Select the drill diameter according to the finished hole size required for your project.

2. Confirm the Drilling Material

This product range is intended for concrete and reinforced concrete drilling applications.

3. Check Machine Compatibility

The standard specifications on this page use a 1-1/4" thread/connection. Confirm both the spindle connection and the drilling capacity of your core drilling machine before ordering.

4. Confirm the Required Drilling Depth

The standard bit overall length is 450 mm. If your project has a specific drilling depth requirement, provide the required depth so we can confirm the suitable specification.

Not sure whether the drill bit fits your machine?
Send us your core drilling machine model, required drill diameter, spindle specification or a clear photo of the connection. We can help confirm compatibility before quotation.

Custom Requirements & Request a Quote

The specifications above are standard options. If your project requires a different diameter, drilling depth or connection, please send us your requirements so we can confirm whether a suitable option is available.

For a faster and more accurate quotation, please provide:

  • Required drill diameter
  • Required quantity
  • Drilling material
  • Dry or wet drilling requirement
  • Required drilling depth
  • Machine model or spindle connection
  • Destination country

Send us the above information and CAHARD will help confirm the suitable specification for your application.

Final product configuration and availability should be confirmed according to the quotation and order requirements.