Busch Fig. 411CT Twincut Concave Cone Cup Bur Kit Set of 16 Burs 0.80mm-2.30mm

Cup burs are primarily used by jewelers for finishing and rounding the top of prongs during stone setting.

*Note 9/21/2023:  Due to ongoing supply issues with Busch burs, this kit has duplicates of sizes 014 & 016 and is missing sizes 012 & 015. It is still a set of 16 burs.

This concave cone shape Busch 411CT steel cup bur has twincut blade geometry that allows for easy removal of cut metal shavings from prongs while being rounded. Also available as a concave Busch 411T, steel cup bur with a traditional concave shape which leaves a more rounded shape when used on prongs as compared to the more sharply sloped rounded shape that these concave cone burs will leave.

This assortment of Busch 411CT concave cone shape cup burs contains one* each of all the burs in this series from 0.80 mm to 2.30 mm in a plastic bur tray.