Bosch 27pcs. Drill Bit & Screwdriver Set #17503 Bosch AccThis handy 27pieces mixed drill bit set & hand screw driver set from Bosch for using with power drills and screwdrivers. For drilling and screwing in different materials Clear layout and easy removal of attachments Can be used for DIY, great impulse purchase, perfect gift idea Package Includes: 5 x Metal Drill ( 2 2 3 4 5 mm); 5 x Wood Drill ( 4 5 6 7 8 mm); 5 x Masonry Drill ( 5 5. 5 6 7 8 mm); 10 x Screwdriver Bits (PH 1 2 2 3) (PZ 1 2 2 3) (S 4 6);