1.drilling hard material,such as stone,granite 2.very good performance. 3.speed very fast,with chip out when working

core kit

This core kit model number  DBSET01

Comprising:

5-pc Core drill: Φ52X150mm, Φ65X150mm, Φ117X150mm, Φ127X150mm, Φ38X150mm6 Accessories: Hex adaptor 90mm,Center drill Φ8X200mm,SDS-Plus adaptor 240mm, Hex adaptor 240mm, SDS-Plus adaptor 115mm,Drift key

Packing:With a Alumnium case

Place of origin:Danyang city

 has many other size set

diamond core drill bit box