Product Description
For use on a Sherline lathe or mill with an ER-16 headstock spindle.
NOTE: We do not sell collets used with the ER-16 spindle. Those are available through MSC Industrial Supply Co. or other tool supply sources.
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ER-16 Collet Nut
ER-16 collet nut
The ER-16 nut that ships with your order may be plain or have a black oxide finish.
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Related products
Jeweler DOP Holder
Sherline Products, in collaboration with Bryan D. Drummond (Gem Cutter & Goldsmith), has designed this DOP Holder specifically for securely holding lapidary DOP sticks during gemstone cutting. If you already own one of our machines, the holder is designed to thread directly onto our ¾-16 headstock spindle nose. It will also be an essential accessory for our upcoming gem cutting machines.
Compatible with Ultra Tec® Dops This DOP Holder has been precisely engineered with tolerances and a keyed dop system designed for compatibility with Ultra Tec® brand dops which are used on their faceting machines. Many gem cutters use Ultra Tec equipment for flat faceting, and the keyed dop feature provides secure alignment and ease of use, making it a valuable addition to your setup. Sherline does not manufacture dops, but they can be purchased directly from Ultra Tec. Like Sherline, Ultra Tec products are high-quality and Made in the USA. Shop Ultra Tec Dops Features:- Made from 12L14 steel with electroless nickel plating for corrosion resistance
- Tapered body provides greater visual access to the stone during cutting
- ¼" dop hole with 10-32 set screw to secure the dop
- 3/32" locating pin for alignment of angle-cut dops
- Precision-machined with tight tolerances for a secure, accurate fit
- Keyed dop system ensures repeatable orientation and alignment
- Fully compatible with Ultra Tec® brand dops and machines
- High-quality construction - Made in the USA
1/4″ HSS Tool Blank
Lathe tools—also known as tool bits—are the cutting tools used for turning, facing, and other operations on a lathe. The most commonly used are high-speed steel (HSS) tools, which are suitable for machining a wide range of materials including wood, plastic, aluminum, brass, and steel. HSS tools maintain their hardness at temperatures up to 1000°F (588°C), making proper depth of cut, cutting speed, and feed rate essential for optimal performance.
One of the key advantages of HSS tools is how easily they can be resharpened using a standard aluminum oxide grinding wheel. Once sharpened, they retain a keen cutting edge through extended use.
Each Sherline lathe comes with a pre-sharpened 1/4″ HSS cutting tool. Pre-ground tool sets—featuring right-hand, left-hand, and boring tools—are also available. However, for long-term savings and flexibility, learning to grind your own tools from blanks is recommended. Custom-shaped tools can be saved for repeat jobs or re-ground for new applications.