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

core kit model number  DBSET03

Comprising:

5-pc Core drill: Ø38x150mm Φ52X150mm, Φ65X150mm, Φ117X150mm, Φ127X150mm

5 Accessories: Hex adaptor 90mm,SDS-Plus adaptor 115mm, extension 300mm,

center drill Ø8x200mm,Drift key

Packing:With a Alumnium case

has many other size set

diamond core drill box