There are several different types of noses for rotary engravers:
- Those with chip removal tubes — These noses are typically not interchangeable with the others. Older noses were made out of Teflon, but because of its cold forming problems, most manufacturers now use Delrin.
- Drop-in and screw-on noses — Metal noses from SST are also common for times when the spindle exerts low pressure and/or some ghosting is not objectionable. These will work on most spindle micrometers.
- Noses without vacuum removal tubes — On some applications, using a nose with no vacuum collection can be utilized. Usually, I utilize these when a surface is mare-resistant, a protected layer is applied, or can be finished afterwards.
- Noses with vacuum removal — A chip removal system connects to a nose assembly tube to remove chips during engraving.
- Tapered noses — For small lettering on contoured material. Mold work would fit this requirement. The end of the nose can be a small as 1/16".
- Bigfoot noses — These noses allow for engraving wide and/or multi-line text. The wider nose will not allow the depth change when larger areas are engraved.
—Fred Schwartz, Quality One Engravers