1 Pc, IS : 6708 – 1977, A, Centre Drills, 4 mm, Addison, HSS, 10 mm

1 Pc, IS : 6708 – 1977, A, Centre Drills, 5 mm, Addison, HSS, 12.5 mm

1 Pc, IS : 6708 – 1977, A, Centre Drills, 6.3 mm, Addison, HSS, 16 mm

1 Pc, IS : 6708 – 1977, A, Centre Drills, 8 mm, Addison, HSS, 20 mm

1 Pc, IS : 6708 – 1977, A, Centre Drills, 10 mm, Addison, HSS, 25 mm

1 Pc, IS : 6709 – 1977, B, Centre Drills, 1.6 mm, Addison, HSS, 6.3 mm

1 Pc, IS : 6709 – 1977, B, Centre Drills, 2 mm, Addison, HSS, 8 mm

1 Pc, IS : 6709 – 1977, B, Centre Drills, 2.5 mm, Addison, HSS, 10 mm

1 Pc, IS : 6709 – 1977, B, Centre Drills, 3.15 mm, Addison, HSS, 11.2 mm

1 Pc, IS : 6709 – 1977, B, Centre Drills, 4 mm, Addison, HSS, 14 mm

1 Pc, IS : 6709 – 1977, B, Centre Drills, 5 mm, Addison, HSS, 18 mm

1 Pc, IS : 6709 – 1977, B, Centre Drills, 6.3 mm, Addison, HSS, 20 mm

1 Pc, IS : 6709 – 1977, B, Centre Drills, 8 mm, Addison, HSS, 25 mm

1 Pc, IS : 6710 – 1977, R, Centre Drills, 1 mm, Addison, HSS, 3.15 mm

1 Pc, IS : 6710 – 1977, R, Centre Drills, 1.25 mm, Addison, HSS, 3.15 mm

1 Pc, IS : 6710 – 1977, R, Centre Drills, 1.6 mm, Addison, HSS, 4 mm