10332370001 - 7 pieces, 6 HSS counterbores at 90° from Ø6,3 to 20,5mm - hexagonal shank + 1 Bit holder | TECHNIC
10331670006 - 5 pieces, 4 HSS E5 counterbores at 90° from Ø8,3 to 16,5mm + 1 HSS E5deburring tool with hole | PREMIUM