Diamond core drill bits, other names are diamond hole saw or diamond core hole saw bit, are used to drill through hard materials, like concrete and stone. They are made with a diamond tip that is sharp and durable, making them ideal for drilling through tough surfaces.

At OneStop Diamond Tools, we specialize in creating custom-made diamond core drill bits that are tailored to meet the specific needs of our customers. We understand that every customer's requirements are different, and our goal is to create the perfect drill bit for each individual. Whether you need a small drill bit for a delicate job or a large one for a tougher task, we can create the perfect tool for the job.

According to the drill depth, we classify our diamond core drill bits into 2 types: short core drill bit and long core drill bit.

The short core drill bits have a standard drilling depth of 60mm, while the long type has a depth of 450mm. They cover different ranges of outer diameters; the short core drill bits are from 6mm to 12mm and the long type is from 25mm to 598mm. The regular connections can be either G1/2", 5/8"-11, M14, or shank.

There are many different types of segments you can choose from, each with its own distinct benefits. The types of segments include crown, flat, roof, turbo, turbo + roof, turbo + zigzag, net, and aero. Choose the segment that best fits your needs to ensure a successful outcome.

Our diamond core drill bits are specially formulated to drill through a variety of materials, from stone to concrete. No matter what your project entails, we have the perfect diamond core drill bit for the job.

Long Diamond Core Drill Bit Sizes

Outer Diameter (mm) Inner Diameter (mm) Drill Depth (mm) Thickness of Barrel (mm) Numbers of Segment
25 21 450 2 3
28 24 450 2 3
30 26 450 2 3
32 28 450 2 3
35 31 450 2 3
38 34 450 2 4
40 36 450 2 4
45 41 450 2 4
51 46 450 2 5
55 51 450 2 5
60 56 450 2 5
65 61 450 2 6
70 66 450 2 6
75 71 450 2 7
80 76 450 2 7
90 86 450 2 8
100 96 450 2 9
108 104 450 2 9
112 108 450 2 9
118 114 450 2 10
120 116 450 2 10
125 121 450 2 11
130 126 450 2 11
135 130 450 2.5 11
140 135 450 2.5 12
145 140 450 2.5 12
150 145 450 2.5 12
160 155 450 2.5 12
170 165 450 2.5 12
180 176 450 2.5 13
190 185 450 2.5 13
200 195 450 2.5 15
210 204 450 3 16
248 242 450 3 16
298 292 450 3 17
348 342 450 3 20
398 392 450 3 28
449 442 450 3 32
498 492 450 3 35
548 542 450 3 38
598 592 450 3 42
Other specifications can be customized upon your requests.

Short Diamond Core Drill Bit Sizes

Outer Diameter (mm) Drill Depth (mm) Connection Type Segment Type Segment Height (mm)
6 50 G1/2", 5/8"-11, M14, shank  Solid 10
8 60  Solid 10
10 60  Solid 10
12 60  Solid 10
14 60  Solid 10
16 60  Solid 10
18 60  Solid 10
20 60 G1/2", 5/8"-11, M14  Crown 10
25 60  Crown 10
30 60  Crown 10
35 60  Crown 10
40 60  Segmented  10
45 60   Segmented  10
50 60   Segmented  10
55  60   Segmented  10
60  60   Segmented  10
65  60   Segmented  10
70  60   Segmented  10
75  60   Segmented  10
100  60   Segmented  10
120  60   Segmented  10
Other specifications can be customized upon your requests.

Get A Quote

If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.