Diamond Core Drill Bits

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Popular Diamond Core Drill Bits

Shark Teeth Core Drill Bit

Grid-Seg Core Drill Bit

Roof-Seg Core Drill Bit

Turbo Seg Core Drill Bit

Crown Seg Core Drill Bit

DBT Drum Core Drill Bit

3 Sections Core Drill Bit

Banana Slot Dry Core Bit

Side Slot Dry Core Bit

L150mm Dry Core Bit

Key Inspection Process

The diamond core drill bits go through a series of processing inspection and performance testing, resulting in consistent products from start to finish.

Drill barrel inspection

We will inspect the dimension and material of drill barrels before brazing the diamond core drill bits.

Test the segment hardness

The segment hardness test can tell if the diamond concentration and metal bond are qualified.

Bending Test on welding Strength

We do bending test on the core drill bit to inspect the welding strength of the segments.

Overall Appearance Inspection

After laser marking and painting, we do overall inspection of the core drill bits, to check the painting quality.

Drilling Test On Concrete Slab

We will pick several core bits out of each shipment to do drilling test and record the drilling speed and performance

Need Core Drill Bit Accessories?

Except for diamond core drill bits, we supply wide range of core drill bit extensions and core drill bit adapters. Like the Hilti core drill bit adapters, SDS core drill bit adapters and many others.

1-1/4-7M-1/2M

1/2M

M14M-M14F

5/8UNFX16(M)-1/2(M)

Adaptor 1-1/4-1/2

1-1/4-7(M)-1/2(F)

Adaptor BI 1-1/4

Adaptor 1/2-M16

Adaptor 1-1/4-1/2

Round Extension Rod

Common Questions You May Ask

You may have some questions to ask, here we have the answers for the frequently asked questions from customers, hope they will be helpful to you.

1. What size diamond core drill bit do I need?

Choosing the right size depends on the hole diameter you’re drilling. Measure the size of the pipe, cable, or fixture you plan to install and pick a bit slightly larger for a perfect fit.

2. Can I use a diamond core drill bit for dry drilling?

Yes, but it depends on the material. Diamond bits for dry drilling work well on softer materials like brick or block. Wash drilling is usually more effective and safer for harder surfaces like concrete.

3. How do I extend the lifespan of my diamond core drill bits?

Always use the correct RPM, apply steady pressure, and make sure to keep the bit cool, especially during wet drilling. Avoid forcing the bit as this can cause damage.

4. What’s the difference between wet and dry diamond core drill bits?

Wet bits use water to cool the drill and remove dust, perfect for hard materials like reinforced concrete. Dry bits are for softer materials and are more convenient but can overheat on tougher surfaces.

5. How do I prevent my drill bit from getting stuck in the concrete?

Ensure you’re using the correct RPM and applying even pressure. Pull back slightly to clear debris every few inches. Using water to cool the bit can also reduce the chance of sticking.

6. Can I use a diamond core drill bit with a regular drill?

Not recommended. Core drill bits are designed for specialized core drilling machines that offer the right power and torque. Regular drills may not provide the precision or strength needed.

7. How do I know when to replace my diamond core drill bit?

If the drilling speed slows significantly, or you notice uneven wear, cracks, or damage on the segments, it’s time to replace the bit for safety and efficiency.

8. What’s the best technique for starting a hole with a diamond core drill bit?

Mark the spot, then use a guide or template to start drilling at an angle. Once the bit grips the surface, straighten the drill to continue vertically.

9. Can I drill through reinforced concrete with a diamond core bit?

Yes, diamond core drill bits are specifically designed for tough materials like reinforced concrete. Wet drilling is recommended to handle the rebar and reduce heat buildup.

10. How do I choose between different diamond core drill bits?

Consider the material you’re drilling, whether you need wet or dry drilling, and the diameter of the hole. Also, check the bit’s segment height and quality to match the job’s intensity.