User set with HSS core drills in the L-BOXX. The most common diameters of HSS core drills are combined in one set. Perfect for steel and bridge construction. HSS NOVA 25 core drill: High service life and particularly impact and shock resistant. Thanks to tough cutting edges and excellent HSS steel with a hardness of 64 HRC, the core drill is ideally suited for rough use in steel construction and assembly. Twist drills and consumables: The most important accessories are always at hand, from the most common drill diameters to cutting paste. L-BOXX case system: Clear, organized, and safely stored. Thanks to the small parts insert, all accessories have their place, and the L-BOXXES can also be easily connected and stacked. Includes 3 HSS twist drills with a cutting depth of 35 mm (Ø 10 mm and 12 mm), 3 HSS NOVA 25 core drills with a cutting depth of 25 mm (Ø 14 / 16 / 18 / 20 / 22 mm), 2 centering pins 82 mm, 1 cutting paste, and 1 L-BOXX 136 for accessories.