Our bullnose carbide insert family is designed to provide highly accurate effective cutting characteristics, in a wide variety of materials. Premium carbide and state-of-the-art coatings are used to ensure the best possible performance and durability. Our application specific coatings maximize insert life and reduce machine cycle time. The various styles of insert grinds have identical locating features to ensure accuracy and consistency in the Sterling Edge tool body. Special application coatings available upon request. The most popular radii for these inserts are stocked. Special corner radii can be ordered to suit your application. 

Flat Bottom Finishing Inserts

Sterling Edge's Flat Bottom inserts are drafted 3deg at the bottom designed to provide effective Z-level and plunge milling with a full 90 side wall and multiple standard corner radii.

Use with flat bottom or ballnose holder.

Backdraft Finishing Inserts

Sterling Edge Backdraft inserts are the standard bearer in profile milling on draft walls where the application requires chip clearance. These inserts are drafted 3deg at the bottom and on the side walls designed to provide effective Z-level and plunge milling without chatter.

Use with flat bottom or ballnose holder.

Sweep Finishing Inserts

The Sterling Edge Sweep Insert blends the clearance of a backdraft with the straight wall cleanup of a 90deg flat bottom. The smaller flat on the side wall and the bottom of the insert allows a larger step down or ramp rate and provides superior finishes on straight walls and pockets. Combined with a carbide or heavy metal shank holder this insert is highly cost effective for deep pocket finishing on both pre-hard and hardened applications, eliminating the need to EDM hardened pockets or the frustration of trying to get desired results with expensive long fluted end mills that chatter and deflect.

Use with flat bottom or ballnose holder.