Jefferson 25 Piece Combination Spanner Set. 12 Point 6 Point (2). Mechanics Spanner Set Jefferson 25 Piece Combination Spanner Tool Set 6-32mm. Manufactured to DIN standard 3113. Set includes sizes 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 30, 32mm.