Specifications: 1) SS0252B: 2.5mm, F2.0, 12 x 0.5, 1/3, B.F.L 5.6mm 2) SS0282B: 2.8mm, F2.0, 12 x 0.5, 1/3, B.F.L 7.5mm 3) SS0362B: 3.6mm, F2.2, 12 x 0.5, 1/3, B.F.L 5.3mm 4) SS0402B: 4.0mm, F2.2, 12 x 0.5, 1/3, B.F.L 5.3mm 5) SS0602B: 6.0mm, F2.4, 12 x 0.5, 1/3, B.F.L 8.69mm 6) SS0802B: 8.0mm, F2.0, 12 x 0.5, 1/3, B.F.L 5.4mm 7) SS1202B: 12mm, F5.0, 12 x 0.5, 1/3, B.F.L 8.38mm 8) SS1602B: 16mm, F5.0, 12 x 0.5, 1/3 9) SS2502B: 25mm, F5.0, 12 x 0.5, 1/3