The Einhell "M" Case measures 175mm x 108mm x 45mm and uses interchangeable inserts which allows the user to add or remove accessories if required. The robust locking clip closure helps to keep contents secure while being transported between jobs, and the transparent lid enables quick identification of the contents when you're searching for the right accessory. This multi material hex shank drill bit set includes HSS, Masonry, and Wood drill bits, covering metric sizes from 2mm to 8mm. The hex shank prevents them from slipping in jawed drill chucks and also means they can be inserted directly into 1/4" hex tool holders as used on some machines. Features & Benefits • Five metal drill bits (2-6 mm) made of roll-forged HSS steel • Five wood drill bits (3-8 mm) made of roll-forged carbon steel • Six masonry drill bits (3-8 mm) made of forged carbon steel • Covers most common sizes needed for applications in wood, metal and masonry • Practical storage case for organised storage • Universal