Specifications: 
1.Segment:Crown ring(dia14-dia50) and segmented(dia60-dia152). 
2.Center water fed. 
3.Total length:50mm,80mm,100mm,120mm,360mm. 
4.Connection:Shank,M14,M16,5/8''-11,GAS1/2'' for CNC machine. 

Feature 
1.Fast and Smooth cutting 
2.Long lifetime 
3.Less Chipping 
4.Minimizing any breakage 
5.Center water feed,used wet. 
6.Less loss of material 
7.Minimum material deformation 
8.Less heat generation 
9.Better finish quality 

Machinery: 
Core Drill Bits be used for protable electric driller and bench drilling machine. 

Application: 
granite, concrete and marble. 

Delivery: 
Delivery Time:Normal 7-12 days .Special order depends.