Keystone Dental # 1290735
Benco Product # 3431-743
Product Line: 1470 - TRIMMING STONES,WHEELS
H.P. Sintered Diamond rotary burs come in three different grits: Coarse, Ultra Coarse and Super Coarse. Coarse is used for porcelain while super coarse is used on chrome, cobalt, and non-precious and hard metals.