25 pcs of 1.0-13.0mm size HSS drills The reinforced and durable core and increased hardness in the working area guarantee a longer service life of the drills. Made of high quality steel, very strong, resistant to torsional stress. Excellent value for money A convenient and practical case In order to keep the workplace tidy, markings for individual drills are carved into the case Universal drill bits in 25 different sizes: 1.0; 1.5; 2.0; 2.5; 3.0; 3.5; 4.0; 4.5; 5.0; 5.5; 6.0; 6.5; 7.0; 7.5; 8.0; 8.5; 9.0; 9.5; 10.0; 10.5; 11; 11.5; 12; 12.5; 13