Weldon Countersinks. CS 26 82 degree, 1.145 diameter 82 degree countersink, CS16-1 1/2" piloted countersink, DB 26 90 degree countersink, DB 48 90 degree countersink, DB 36 90 degree countersink, DB36 90 degree countersink, DB 18 90 degree countersink. Conventional countersinks 1/4 x 120, 3/8 x 90, 1/2 x 82, 1/2 x 90, 5/8 x 100, 3/4 x 82, 1 x 60, 1 1/4 x90. Used but in very good condition.