the following example is for you reference.
1.Brief Introduction:
Core barrel with pin teeth
Main application mainly recommended for cutting through reinforced concrete
2.Techincal parameters:
Features Kellybox 200 mm cutting ring with pin teeth
Features: Kelly box: 130-150-200 - other available upon request Cutting ring welded bar teeth welded into inside the base ring of core barrel.
3.Performance features:
Wear protection: hard facing (standard) or wear stripe (optional)