The rounded nose on these inserts contours the outside of the workpiece and cuts grooves with rounded edges. Pair an insert with a compatible shank-style holder. When the first cutting edge dulls, flip the insert to use the other edge, giving it twice the life of a standard grooving insert.

Fit these holders directly into a lathe tool post or appropriately sized holder without the need for a tool block. Pair with a square-nose carbide insert (sold separately) to make a cutoff and grooving tool or a round-nose insert to make a grooving and profiling tool. These holders have an opening at one end.

Combine a carbide insert with a compatible internal profiling holder to create a tool that can contour the interior wall of a hollow workpiece. When one edge of the insert dulls, just rotate it in the holder to use another side.

C3 carbide inserts are abrasion resistant and less likely to chip or crack than C6 carbide when cutting aluminum, brass, and bronze.

C6 carbide inserts hold up better than C3 carbide when making cuts in steel and stainless steel.

Contour the interior wall of a hollow workpiece when you pair a holder with a compatible insert (sold separately).

Reduce tooling setup time—install the holder once and alternate between applications by switching out the bit. Once the holder has been aligned with the centerline of the lathe, the locking system ensures alignment repeatability from tool to tool.

Contour the interior wall of a hollow workpiece. Tools have flats on the shank for quick alignment.