The DEWALT DEWDT9702QZ Extreme 2 SDS-Plus drillbit 4 piece set includes the following sizes: 
1 x 5.5mm diameter drill bit
1 x 7mm diameter drill bit
1 x 8mm diameter drill bit
1 x 10mm diameter drill bit

The drill bits have superior carbide grade for long life and greater durability. They have optimised flute design for efficient debris removal and hardened body for extra strength and reduced breakage. The tip design ensures better bit penetration, longer life, faster drilling and greater durability.