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Diamond core bits for refractory materials and stones.
Diamond core bits for refractory materials and stones.

Stone drills especially for stones and refractory materials, used for all kinds of stones, such as granite, marble, glass etc..

Diameter: 8mm –200mm, M14, 5/8”-11 thread connection
 
Professional OEM, superior grade quality, more than 10years manufacturing experience
 
high diamond concentration
 
fast drilling speed and smooth surface of coring
 
stable and aggressive performance
 
long working lifespan and less maintenance
 
good sharpness and easy installation
 
High quality steel of bit dody
 
Masonry drill bits are designed to satisfy each customers’ specific request, ensure stable performance and longer working life, especially these bits fit for drilling hard materials, various ranges of refractory materials and stones etc…
 
The main working parts of Diamond core drill bits - drilling segments are made of Cobalt-based formula, and superior grade diamond to match, the quality is at least twice better than normally used Iron base formula by other most producers.
 
CE: ISO: 9001: 2000
 
MOQ: 50PCS
Packing: neutral packing
Delivery time: 10-20days
  
 

Outer diameter
Core-Bit’s Length (mm)
Dimension of tooth (mm)
Number of teeth
mm
Length
Height
Thickness
25
130/165
18.5
8
2.5
 3
28
130/165
18.5
8
2.5
 3
30
130/165
17
8
2.5
 4
32
130/165
17
8
2.5
 4
35
130/165
21
8
2.5
 4
40
130/165
19
8
2.5
 5
45
130/165
18
8
2.5
 5
50
130/165
20
8
2.5
55
130/165
21
8
3.0
 6
60
130/165
21
8
3.0
 7
70
130/165
23.8
8
3.0
 7
80
130/165
23
8
3.0
 8
85
130/165
23
8
3.0
 8

Other specifications and sizes are possible upon request.