Overview
This custom annular bit combines a core passage with an enlarged outer cutting profile. The source photographs identify the 100/153 family and show its rounded cutting elements.
Cutting Structure and Configuration
The crown face and outer profile should be reviewed together: the tool has a central opening for coring and cutting elements on its enlarged perimeter. It differs from a solid-faced hole opener.
Applications
Discuss this configuration for a custom coring and enlargement assembly. The pilot or core dimensions, outer gauge and barrel connection need to form a compatible drilling system.
Selection and Customization
Share the required finished-hole diameter, drill-string connection, formation description and flushing method with FSDRILL. The cutter arrangement and connection should be selected together with the drilling assembly. Photographs show the illustrated configurations; the final specification is agreed for the project.
Actual Product Photographs
