This bit has a 10 degree cutting draft with a bearing that matches, enabling the cutter to do more work so you have to do less and is designed specifically for use in undermount installations of: Gemstone Vanity #'s 1514-VO, 1812-VO, 1613-VSO, 1814-VO, 1814-EVO, 1313-VO, 1513-VO, 1711-VO, Gemstone Bar & Kitchen Sink #'s 1014-S, 1016-S, 1318-S, 1411-S, 1507-S, 1515-S, 1815-S, 1524-S, 1517-S, 1616-S, N1616-S, 1616-ES, 2116-US, 2015-S, 2318-S, 2416-ES, 2615-S, 2716-US, 2718-S, 2818-S, 2033-S, 2916-UD, 1729-D, 2917-D, 1930-DL, 1630-D, 3016-D, 3118-D, 3218-D, Livingstone Vanity # K-140G, Livingstone Kitchen Sink #'s K130-G, K140G, K160G, DuPont Kitchen Vanity #'s 810P, 8252, 8254, 850P, DuPont Kitchen Sink # 850-P, Wilsonart Vanity #'s BV1514, BV1812, BV1313, BV1711, Wilsonart Kitchen Sink #'s BK2015, BK1515, BD1630, BD3016, BK2716US, Formica Vanity # L080, Formica Kitchen Sink #'s K080A, K250A, They trim and profile the counter-top edges after the bowl is mounted.
