Also known as Swiss lathe tools, these inserts are designed for use in precision lathes. Coated in multiple layers of PVD, they stay sharper longer than CVD-coated inserts. They’re optimized for steel but also work on stainless steel. Install inserts into a matching holder.

These inserts are meant for semi-interrupted cutting conditions. As the most common insert type, they often machine imperfectly round workpieces, like shafts with a keyway. They have a positive rake, meaning they stick out in front of the holder to reach tight spaces on the workpiece. However, they don’t last as long as negative rake inserts because they have cutting edges on only one side. Since these inserts have a 0° lead angle, or a neutral cut direction, they can cut from either right to left or left to right.

Inserts with a larger nose angle and tip radius remove more material with each pass but cut less precisely than smaller inserts. Select the insert with the largest nose angle and tip radius that will still turn your workpiece to the desired shape.

Use finishing inserts at the end of your turning process to remove minimal material for a smooth finish. Medium inserts remove a moderate amount of material for a semi-smooth surface finish.

Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment. Inserts sold in packs come factory sealed from the manufacturer, for maximum traceability.