The bosch x-line 30 piece drill and screwdriver bit set is a versatile mixed accessory set designed for drilling in metal, masonry, and wood, alongside a comprehensive selection of screwdriver bits for the most common screw head types. The set includes 11 hss-tin metal drill bits with a titanium nitride coating, delivering fast drilling progress and extended service life. Four carbide-tipped masonry drill bits offer precise, efficient drilling through stone with low heat development, while four wood drill bits feature a centring tip and shoulder cutter for clean, tear-free results. Completing the set are 10 extra-hard screwdriver bits covering phillips, pozidriv, torx, and slotted head types, supplied with a universal magnetic holder and a countersink. Compatible with all power tool brands, this set is well suited to general contractors, maintenance professionals, and competent diyers who need a reliable all-round drilling and driving solution in a single compact case. Features and benefits: 11 hss-tin metal drill bits ø 1.5 6.5 Mm with titanium nitride coating for fast drilling and long service life 4 carbide-tipped masonry drill bits ø 4 7 mm for precise drilling with low heat development 4 wood drill bits ø 4 8 mm with centring tip and shoulder cutter for tear-free hole drilling 10 extra-hard screwdriver bits covering phillips, pozidriv, torx, and slotted head types includes universal magnetic bit holder and countersink compatible with all power tool brands specificati...