- Home
- Findings
- Chains
- Gemstones
- Metals
- Tools & Consumables
- Display & Packaging
- Books
- Gift Cards
- Pricing & Discounts
- Contact Us
#414 Bearing cutter or Hart burs are used for cutting seats in prongs and into channel & flush settings. *They suit the setting prep needed for locating facetted gemstones with a girdle angle approx 90 degrees.