Product description 6-38mm stepper drill. Made of high speed steel HSS 4241, coated with nitride titanium. 12 degrees with diameter: 6; 8; 11; 14; 17; 20; 23; 26; 29; 32; 35; 38mm, roll handle. Technical data Index number YT-44740 Brand Yato Length [mm] 105 Diameter [mm] 6; 8; 11; 14; 17; 20; 23; 26; 29; 32; 35; 38 Material steel HSS 4241 Use of Metal Cylinder bracket